Meeting Notice & Agenda Note - Central Electricity Authority

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Agenda – 42nd SCMPSPWR 1

Agenda notes for the 42nd Meeting of Standing Committee on Power System Planning in

Western Region

1. Confirmation of the minutes of 41st meeting of the Standing Committee on Power

System Planning in Western Region (SCPSPWR) held on 21.12.2016 at NRPC,

Katwaria Sarai, New Delhi

1.1. The minutes of the 41st meeting of SCPSPWR were issued vide CEA letter No.

26/10/2017/PSP&PA-I/ 92 – 106 dated 16.02.2017.

1.2. No comments from any of the constituents have been received on the same. The Committee

may confirm the minutes of 41st meeting of SCPSPWR.

2. Reviewing the Progress of Earlier Agreed Transmission Schemes

2.1. The status of implementation of transmission projects under tariff based competitive bidding

in Western Region are enclosed at Annexure – 2.1. The status of transmission schemes under

implementation by POWERGRID in Western Region is enclosed at Annexure – 2.2.

2.2. Members may deliberate.

3. Early commissioning of TBCB schemes of M/s Adani Transmission Ltd.

3.1. Adani Transmission Ltd. vide its letter no. ATL/CEA/17-18/03062017 dated 03.06.2017

requested for advancement of transmission schemes ‘Additional System Strengthening for

Sipat STPS’, ‘Additional System Strengthening Scheme for Chhattisgarh IPPs – Part B’ and

‘System Strengthening for IPPs in Chhattisgarh & Other Generation Projects in Western

Region’ being under implementation through TBCB (Tariff Based Competitive Bidding)

process by M/s STL, M/s RRWTL and M/s CWRTL (owned by M/s Adani Transmission

Ltd.) respectively.

3.2. MoP vide their order no. 15/1/2013-Trans dated 15.07.2015 has issued the policy for

incentivizing early commissioning of transmission projects. Subsequently, MoP vide its

OM No. 15/1/2013-Trans dated 05.10.2016 constituted a committee to ensure smooth

operationalization of the Policy for early commissioning of Transmission Projects.

3.3. Accordingly, on the request of M/s STL, RRWTL and CWRTL, a meeting was held on

16.06.2017 in CEA, New Delhi, under the chairmanship of Member (PS), CEA. The request

received from M/s STL, RRWTL and CWRTL for the early commissioning did not qualify

under the MoP policy for the early commissioning, as the request was not made well in

advance (i.e. less than 24 months prior to the intended early SCOD). However, there is a

provision in the Transmission Service Agreement (TSA) between TSP and LTTCs which

provides that COD shall not be date prior to the scheduled COD mentioned in the TSA unless

mutually agreed by all parties. In view of this, the proposals received from M/s STL,

RRWTL and CWRTL were discussed scheme / element wise and the following was agreed:


i) The elementwise details of the three schemes along with their scheduled COD as per

TSA, TSP’s proposed early commissioning COD and the mutually agreed date for early

commissioning is enclosed at Annexure – 3.1.

ii) The TSP and the implementing agency of the upstream and downstream network would

make best effort to achieve the mutually agreed date of early commissioning as given

in Annexure – 3.1. The parties involved would coordinate with each other to ensure

that there is no mismatch. In case of any anticipated mismatch, the respective

transmission elements are to be completed by revised mutually agreed date or by

SCOD, whichever is earlier.

iii) There will be no financial implication either on the TSP or on the implementing

agencies of the upstream and downstream network, in case of mismatch in achieving

the early commissioning date.

3.4. Members may kindly note.

4. Provision of Bus Reactors at High Voltage Nodes in Western Region – by

POWERGRID

4.1. In 41st meeting of SCPSPWR, PGCIL had proposed 5 no. of bus reactors in Western Region

i.e. Mapusa (400 kV – 125 MVAR), Solapur (765 kV – 240 MVAR), Kolhapur GIS (400

kV – 125 MVAR), Rajgarh (400 kV – 125 MVAR) and Aurangabad (765 kV – 240 MVAR)

based on the studies carried out for 2018–19 timeframe (off peak) conditions for controlling

overvoltage. In the meeting MSETCL had informed that they had planned reactive power

compensation at various nodes in their system including Solapur. It was agreed that the

reactive power compensation proposal of PGCIL need to be reviewed considering the

reactors already proposed by MSETCL and any other utility of Western Region. CEA

requested all utilities to furnish the list of reactive compensations proposed in Western

Region.

4.2. In line with the decision of 41st meeting of Standing Committee on Power System Planning,

a meeting was held on 13.01.2017, wherein MSETCL intimated that it has planned 11 nos.

bus reactors each of 125 MVAR at following 400 kV S/s of MSETCL and these are expected

to be commissioned by 2021-22, namely, (i) Karad (ii) Kolhapur (iii) Solapur (iv) Nanded

(v) Akola-II (vi) Bhusawal – II (Deep Nagar) (vii) Koradi–II (viii) Chandrapur–II (ix)

Khaparkheda (x) Lonikhand-II (xi) Dhule. In addition, 25 MVAR bus reactor at Dhule (220

kV) in GEC-I, and 125 MVAR at Balsane (400kV) in GEC II was also proposed. MSETCL

is also providing 125 MVAR bus reactors at Kudus and Alkud 400 kV sub-stations. During

the meeting, it was decided that the revised system studies would be carried out for assessing

balance reactors requirement in WR by PGCIL, after considering reactors proposed by

MSETCL.

4.3. MSETCL has further informed that among 11 nos. shunt reactors planned, the work of

procurement, installation and commissioning of 3 nos. reactors at Kolhapur, Karad and

Solapur is under progress and remaining 08 Nos. of 1 x 125 MVAR Shunt Bus Reactors

submitted for 90% funding from PSDF are as below.

Phase –-I: 1) Nanded, 2) Akola-II, 3) Koradi-II, 4) Bhusawal-II,

Phase –II: 5) Khaparkheda, 6) Chandrapur-II, 7) Lonikand-II, 8) Dhule


4.4. MSETCL has requested approval of the SCPSPWR for the above 8 nos. bus reactors for

getting funding under PSDF.

4.5. Subsequently, a joint meeting amongst CEA, CTU and MSETCL was held on 7-8 Sep.17 at

CEA, New Delhi, wherein the reactive compensation requirement in WR was studied after

considering all the bus reactors proposed by MSETCL for 2021-22 time-frame (in off-peak

scenario). After considering MSETCL reactive compensation proposal, following is the list

of high voltage nodes in WR, where voltages remain on the higher side. Therefore, additional

reactive compensation is required at these nodes.

Sl.

No.

Name of the

Substation

Existing Bus

Reactor(s)

(MVAr)

Proposed

Bus

Reactor

(MVAr)

% times (avg)

voltage

beyond 420kV

/ 800kV as per

operational

feedback

report (Apr-

Jun’17)

Voltage in 2021-22

time frame

(Off peak)

Without

proposed

reactor

With

proposed

reactor

1

Khandwa 400

kV 2x125 125 8 418 414

2 Solapur 765 kV 240 240 20 795 787

3 Rajgarh 400 kV 125 125 27 421 416

4 Wardha 765 kV 240+330 330 3 799 791

5

Aurangabad

765 kV 2x240 240 1 803 795

4.6. Further, high voltage issues at Raipur Pool (Durg) 765kV bus were discussed in 497th OCC

meeting of WR. In July 17, maximum voltage observed at Raipur PS was 808kV and for

16.3% of time the voltage remained above 800kV. Matter was recently deliberated in the

498th OCC meeting of WR held on 22.08.2017 and it was decided to refer the matter in SCM.

In the off-peak file for 2021-22 time-frame, the voltage at Raipur PS 765kV bus is obtained

as 788kV without any proposed reactors and 785kV with reactors proposed in the table above

and without any additional reactor at Raipur PS. Since voltage obtained at Raipur Pool

(Durg) 765/400kV substation is below 790kV in the 2021-22 time frame (off-peak), no

additional reactor needs to be planned at the Pooling Station.

4.7. Further, looking into the high voltages at various nodes identified above (close to 420kV and

800kV respectively), following bus reactors are proposed at ISTS nodes in Western Region:


Sl. No. Name of the Substation Proposed Bus

Reactor (MVAr)

1 Khandwa 400kV 125

2 Solapur 765kV 240

3 Rajgarh 400kV 125

4 Wardha 765kV 330

6 Aurangabad 765kV 240


5. Second 400 kV D/C transmission line for BALCO Complex – M/s BALCO

5.1. In the 40th meeting of SCPSPWR held on 01.06.2016, M/s BALCO had raised the issue of

single point of connectivity of BALCO with the ISTS system (through BALCO-

Dharamjaygarh 400 kV D/C dedicated line) and for redundancy had requested for second

400 kV interconnection with ISTS. M/s BALCO had also requested that the existing interim

connectivity arrangement (LILO of 2nd ckt of Korba-Birsinghpur 400kV D/c line at BALCO

switchyard), instead of dismantling, may be retained permanently for power evacuation as a

redundant transmission line, in case of any exigency condition. The issue was discussed and

committee was of the opinion that the interim LILO connectivity cannot be put in parallel to

the dedicated line, but instead of dismantling it, the LILO portion can be disconnected from

the main line and kept in charged condition with a suitable bypass arrangement, which could

be used in exigencies as per the instructions of the Grid Operator. M/s BALCO was requested

to submit the bypassing scheme so that the same could be examined by CEA, CTU and

POSOCO.

5.2. In the 41st meeting of SCPSPWR held on 21.12.2016, M/s BALCO has proposed segregation

of connectivity of 2010 MW into connectivity for IPP (600 MW) and CPP (1410 MW). It

had requested for separate connectivity for the CPP for (i) Grid security for BALCO

complex, (ii) to fulfill RPO obligation for Aluminium smelter plant, (iii) to fulfill Power Sale

commitment and (iv) import of power in case of shutdown of multiple CPP units. In the

meeting, members observed that BALCO has modified its connectivity two times and again

and it has now made a proposal for the revision of its connectivity and segregation of the

connectivity of 2010 MW into connectivity of 1410 MW for CPP and 600 MW for IPP. In

the meeting, members opined that the proposal needs a close examination. Accordingly, it

was decided that a separate meeting shall be convened by CEA with CTU, WRLDC and

BALCO to further deliberate on the issue as per the regulations of CERC.

5.3. In line with the decision of the 41st meeting of SCPSPWR, a meeting was held on 10.03.2017

in CEA, where in, the following was agreed:

(i) Existing Connectivity with ISTS through BALCO – Dharamjaygarh 400 kV D/C line,

provided for injection of power from both CPP and IPP units of BALCO, is adequate.

The existing regulations do not have provision for separate connectivity for CPP and

IPP units connected with ISTS system at a single point. Further, BALCO is not eligible


to apply for additional connectivity for the same generation capacity for which

connectivity has already been granted. In case, if BALCO still desires separate

connectivity for CPP and IPP units connected with ISTS system at a single point, M/s

BALCO may approach CERC for necessary direction in this regard.

(ii) M/s BALCO is resorting to frequent change of status of its units from IPP to CPP and /

or vice versa. M/s BALCO may therefore clearly identify the IPP units & CPP units and

submit necessary documents to CEA, CTU and POSOCO in this regard.

5.4. This is for kind information of the members.

6. LILO of SSP – Dhule 400 kV D/C at Shivaji Nagar (Balsane) 400 kV S/s – proposal by

MSETCL

6.1. MSETCL has submitted a proposal under GEC–II Part B for funding under GEC (Green

Energy Corridor - 40 % KfW loan, 40 % NCEF grant and 20 % State Govt. equity) which,

interalia, includes establishment of 400/220 kV pooling station at Balsane (Shivajinagar) by

LILO of one ckt. of Sardar Sarovar–Dhule 400 kV D/C line at Balsane. This substation has

been proposed by MSETCL for evacuation of power from large quantum of existing and

proposed RE generation projects in Sakri, Shivaji Nagar and Dondaicha area. The scope of

works of 400 kV Pooling S/s. is as follows:

a) 400/220 kV Pooling Sub-Station at Balsane (2021-22)

b) 2 x 500 MVA, 400/220 kV ICTs with GIS bays.

c) LILO of one ckt. of 400 kV Dhule–Sardar Sarovar D/C line at Balsane 400 kV Pooling

S/s.

d) 220 kV D/C line from 400 kV Pooling S/s. to 220 kV Shivajinagar S/s.

e) LILO of 220 kV Dhule – Dondaicha S/C line partially on M/C towers at 400 kV Pooling

S/s.

f) 1 x 125 MVAr Bus Reactor at 400 kV Pooling S/s.

6.2. In a joint meeting held on 7-8 Sep.17 at CEA, New Delhi amongst CEA, CTU and MSETCL

the scheme was discussed, wherein, few alternatives of the 400 kV interconnections of the

proposed 400 kV Balsane pooling station were studied. In all the alternatives, the power flow

was towards Dhule (from Balsane). The following alternatives in addition to LILO of one

circuit of Sardar Sarovar–Dhule 400 kV D/C line were studied:

Alternative 1 (i) LILO of both ckts of SSP – Dhule 400 kV D/C at Balsane

Alternative 2 (i) Balsane – Dhule 400 kV D/C line

Alternative 3 (i) Dhule – Nashik 400 kV D/C line

(ii) LILO of both ckts of Dhule – Nashik 400 kV D/C line at

Balsane.

Alternative 4 (i) LILO of one ckt of SSP – Dhule 400 kV D/C at Balsane.

(ii) Balsane – Nashik 400 kV D/C line


6.3. The proposal made by MSETCL also involves 220 kV interconnections of Balsane 400/220

kV pooling station with the existing system, therefore with the increase in injection of RE

power overloading of some of 220 kV lines were observed.

6.4. MSETCL was suggested to consider Alternative 4 so that Balsane 400/220 kV could be

directly connected to Nashik (load centre) through 400 kV D/C line. The implementation

could be taken up by MSETCL in phases with increasing RE injection in the area. Also with

this alternative, Nashik would get interconnected at 400 kV, which at present is radial. It

may be noted that for providing 400 kV interconnection to Nashik, LILO of Navsari – Navi

Mumbai 400 kV D/C at Nasik (to be implemented by MSETCL) was agreed in the 28th

meeting of SCPSPWR held on 06.12.2008, which was dropped in 41st meeting of

SCPSPWR.

6.5. MSETCL may present the final scheme and members may deliberate.

7. Additional feed to Goa: interconnection of Xeldam and Xeldam (New) S/s

7.1. The following transmission scheme for providing additional feed to Goa was discussed in

39th meeting of SCPSPWR held on 30.11.2015 and agreed in the 40th meeting of SCPSPWR

held on 01.06.2016 at NRPC, New Delhi:

i) Establishment of 2x500 MVA, 400/220 kV new substation at Xeldam. The

interconnection between the existing 220 kV Xeldam i.e. Xeldam (GED) substation

and the proposed 400/220 kV new Xeldam substation could be through bus extension

or through 220 kV interconnecting lines, as the case may be.

ii) LILO of one circuit of Narendra (existing) – Narendra (new) 400 kV D/C quad line at

Xeldam.

iii) Xeldam (New)-Mapusa S/s 400 kV D/C (Quad) line to take care of any N-1-1

contingency involving outage of any one 400 kV infeed to Goa.

7.2. The above scheme is being implemented through TBCB route. To finalize the 220 kV

interconnection arrangement between new Xeldam S/s i.e. Xeldam (TBCB) and Xeldam

(GED), a meeting was held on 25.04.2017 at Goa among representatives of GED, PFCCL,

CTU and CEA. The minutes of the meeting enclosed as Annexure – 7.1. In the meeting, the

following interconnection was agreed:

Under TBCB scope

a) Xeldem (TBCB) – Xeldem (GED) 220 kV D/C line with HTLS conductor equivalent to

twin moose conductor

(220 kV line / interconnection is under TBCB Scope, 2 nos. 220 kV line bays at Xeldem

(GED) to be constructed by GED)

Under GED scope

b) New Xeldem (400 kV) – Verna (GED) 220 kV D/c line: 220 kV line and 2 nos. 220 kV

line bays at Verna (GED)

c) LILO of 2nd circuit of Ambewadi – Ponda 220 kV D/C line at Xeldem (New) 400 kV

S/s.


7.3. Subsequently, M/s GED has requested for implementation of Xedam (New) – Mapusa 400

kV D/C line, which is under scope of TBCB, on multi-circuit towers instead of double circuit

towers, so the same could be utilized for establishment of their Xeldam – Mapusa 220 kV

D/C line (via Kadamba & Verna) and the overall RoW requirements would be reduced.

7.4. To discuss the issue raised by GED, a meeting was held in CEA on 14.06.2017, wherein it

was observed that the three alternative routes for the proposed for Xeldem (new)-Mapusa

400 kV D/C line marked in the survey report submitted by BPC were not passing through

the proposed route of 220 kV Mapusa-Kadamba-Verna-Xeldem D/C line of the GED.

Further, Xeldem (new)–Mapusa 400 kV D/C line is an ISTS line, which is to be implemented

through TBCB route and the 220 kV D/C line from Mapusa–Kadamba–Verna–Xeldem D/C

line is an intra state line of GED. Therefore, it was decided that both 400 kV and 220 kV

circuits cannot be implemented on same multi-circuit towers, and they are to be implemented

independently. The minutes of the meeting is enclosed as Annexure – 7.2.

7.5. Members may note.

8. Progress of dedicated transmission lines of IPPs which are connected through interim

arrangement – Extension of Essar Power (Mahan) interim connectivity:

8.1. The cases of connectivity on interim LILO in Western Region (including M/s EPMPL case)

were discussed in the 40th & 41st meeting of SCPSPWR held on 01.06.2016 & 21.12.2016

respectively, to finalize the replacement of interim LILOs of generation developer by their

dedicated transmission lines as per direction of the CERC. In the 41st meeting of SCPSPWR,

M/s EPTCL was requested to expedite the implementation of Mahan STPS–Bilaspur Pooling

Station 400 kV D/C line before monsoon as against their completion target of December

2017. In line with direction given by CERC vide order no. 30/MP/2014 dated 28.06.2016,

the matter was referred to WRPC forum for further deliberation.

8.2. WRPC in their 33rd meeting held on 31.01.2017 & 01.02.2017 has agreed to the TCC

recommendation that M/s EPMPL should complete the line by 30.06.2017 and CTU to

discuss such issues in WRPC forum. CTU vide their later dated 15.06.2017 has written to

WRLDC to initiate action for disconnection of interim arrangement of M/s EPMPL by

30.06.2017.

8.3. Subsequently, M/s EPMPL vide their later dated 13.06.2017 has requested CEA for

extension of LILO arrangement for evacuation of power from their generation plant up to

January 2018. A meeting was held under the Chairmanship of Member (Power System),

CEA on 28.06.2017 at CEA, New Delhi to discuss the extension of LILO arrangement for

evacuation of power of M/s EPMPL Power Project (2x600 MW) at Mahan in Madhya

Pradesh. Minutes of the meeting enclosed as Annexure – 8.1. In the meeting, following was

decided:

i) The transmission system for evacuation of power from M/s EPMPL generation plant at

Mahan is now an ISTS system being implemented by M/s EPTCL (ISTS Transmission

Licensee) and not a dedicated transmission system of generation developer. As such

LILO of Vindhyachal–Korba STPP 400 kV S/C would not be an interim arrangement.

This change would be brought to the notice of constituents in the next meeting of

SCPSPWR.


ii) The system studies indicate that the LILO of Vindhyachal–Korba STPP 400 kV S/C line

at Mahan STPS would also be essential to take care of contingency of outage of one ckt

of Mahan SPTS–Bilaspur Pooling Station 400 kV D/C line for reliable evacuation of

power from 2x600 MW units of Mahan TPS.

iii) M/s EPTCL has agreed to complete the remaining works of Mahan STPS–Bilaspur

Pooling Station 400 kV D/C line by December 2017.


9. Connectivity of Railways’ TSS with ISTS Network

9.1. In 41st meeting of Standing Committee on Power System Planning of Western Region held

on 21.12.2016, Railways requested for availability of 220 kV bays at various substations for

its Delhi – Bharuch route. PGCIL confirmed the availability of 2 no. of 220 kV AIS bays at

Rajgarh, Dehgam, Pirana, Kota & Bassi substations and 2 no. of GIS bays at Vadodara. It

was decided in the meeting that Railways shall submit the location of TSS, maximum load,

interconnection etc., and to assess the availability of transformation capacity Railways was

requested to apply for LTA.

9.2. South East Central Railways, Bilaspur vide its letter no. ELECT/SECR/227/NTPC/1876

dated 24.05.2017 (enclosed as Annexure – 9.1) intimated that PGCIL has granted

connectivity to 220/132 kV Bhilai GSS (Grid Sub Station) of Railways (which in feeds to

various TSS – Traction Substations) through Raipur (Kumhari – PGCIL). In order to provide

an alternative source of feeding to these TSS, it has requested for another connectivity to its

Raigarh GSS through 400/220 kV Raigarh (PG) S/s.

9.3. Subsequently, South East Central Railways, Bilaspur vide its letter no.

ELECT/SECR/227/NTPC/2727 dated 26.07.2017 (enclosed as Annexure – 9.2) requested

for additional ISTS connectivity for Bhatapara GSS through 400/220 kV Bhatapara S/s for

reliability and to address voltage drop during feed extension.

9.4. Railways may furnish the information regarding the locations of its various TSS / GSS along

the Delhi–Bharuch route, maximum load at each of these, its interconnection etc., and

maximum load of Bhilai GSS.


10. Transmission System for Solar Power Parks in Madhya Pradesh

10.1. In the 40th meeting of SCPSPWR, the following transmission system strengthening scheme

was agreed by the members:

Inter State Transmission system strengthening in Chhatarpur area in Madhya Pradesh

(i) Establishment of 2x500 MVA, 400/220 kV substation at Bijawar*

(ii) LILO of Satna – Bina 400kV (1st) D/c line at Bijawar. (There are four 400kV circuits

between Satna and Bina, out of which one is proposed to be LILOed at Sagar

(MPPTCL) Substation. This LILO is on one D/c out of the above three remaining

400kV circuits between Satna and Bina).


(iii) 1x125 MVAr, 420 kV Bus Reactor at Bijawar pooling station.

(iv) 4 nos. 220kV line bays for termination of LILO of both ckts of Tikamgarh-

Chatarpur 220 kV D/c line at Bijawar.

(v) Space for 4 nos. of 220kV line bays for solar park interconnections

*SPPD shall provide land contiguous to Chhatarpur solar park for establishment of

400/220kV Bijawar substation.

Intra State Transmission system strengthening in Chhatarpur area in Madhya

Pradesh

(i) Stringing of 2nd circuit of Tikamgarh – Chhatarpur 220kV S/c on D/c line.

(ii) LILO of both circuits of Tikamgarh-Chhatarpur 220 kV D/c line at Bijawar 400/220

kV substation (60 km)

10.2. The following transmission system was agreed by the members for solar parks in Madhya

Pradesh, which has been planned in advance in view of the short gestation periods of solar

park, based on the information made available by MNRE, MPPTCL and Govt. of Madhya

Pradesh:

S.

No.

Solar Park Capacity

(MW)

Proposed Transmission System

1 Suwasara

Distt. Mandsaur

250 Intra-State Scheme

MPPTCL scope (already under implementation by

MPPTCL under Green Energy Corridor Phase-I):

(i) 400/220kV Sitamau (Mandsaur) substation

(ii) Mandsaur-Nagda 400kV D/c line (100kM)

SPPD scope:

Interim Arrangement (Required due to mismatch in the

Implementation schedule of 400/220kV Sitamau S/s

(2018-19) and Suwasara Solar park (Mar. 2017))

(i) 220kV D/c line from Solar Park Pooling station to

crossing point of Bhanpura-Badod 220kV line – 13

km

Connectivity System

(i) Extension of 220kV D/c line from crossing point of

Bhanpura-Badod 220kV line up to Sitamau

(Mandsaur) – 37 km

(ii) Associated 220kV line bays


2 Neemuch Solar

Park

Comprises of

three solar parks:

(i) Rampura

Solar Park

(150 MW)

(ii) Singoli Solar

Park (200

MW)

(iii) Jeeran

Solar Park

(150 MW).

500 Intra-State Scheme

MPPTCL scope:

Already under implementation by MPPTCL under

Green Energy Corridor Phase-I

(i) 400/220kV Sitamau (Mandsaur) substation

(ii) Mandsaur-Nagda 400kV D/c line (100kM)

(iii) 220 kV Ratangarh Pooling station

Additional system (may be reviewed by MPPTCL)

(iv) Establishment of 1x500 MVA (3rd), 400/220 kV

transformer at Sitamau (Mandsaur)

Connectivity System - SPPD Scope

(i) Rampura SP – Sitamau (Mandsaur) 220 kV D/c line

- 60 km

(ii) Jeeran SP - Sitamau (Mandsaur) 220 kV D/C line -

60 km

(iii) Singoli SP – Ratangarh 220 kV D/C line – 30 km

3 Agar (250 MW),

Rajgarh (250

MW) and

Shajapur (Moman

Badodiya 250

MW) solar parks

Agar comprises

of two solar parks:

(i) Agar Solar Park

(125 MW)

(ii) Susner

Solar Park (125

MW)

Rajgarh comprises of two

solar parks:

(i) Jeerapur Solar

Park (125 MW)

750 Inter-state transmission system

TBCB/ POWERGRID scope:

(i) Establishment of 2x500 MVA, 400/220 kV Pooling

station at/near Jeerapur

(ii) LILO of both circuits of RAPP –Shujalpur 400 kV

D/c at Jeerapur Pooling station

(iii) 1x125 MVAr, 420 kV Bus Reactor at Jeerapur

Pooling station

(iv) 220kV line bays (10 nos) for solar park

interconnections

MPPTCL scope:

(i) Shujalpur (PG)-Shujalpur (MP) 2nd 220 kV D/C

line or another 220kV outlet from Shujalpur (PG)

towards Ashta /other load center

Connectivity System – SPPD scope

(i) Agar SP – Jeerapur Pooling station 220 kV D/c –

35 km

(ii) Susner SP – Jeerapur Pooling station 220 kV D/c –

20 km


(ii) Khilchipur

Solar Park (125

MW)

(iii) Jeerapur SP – Jeerapur Pooling station 220 kV D/c

(iv) Khilchipur SP– Jeerapur Pooling station 220 kV

D/c – 20 km

(v) Moman Badodiya SP – Jeerapur Pooling station

220 kV D/c – 45 km

4 Chattarpur Solar

park

As informed by

MoP/MNRE the

capacity of the

solar park is 250

MW.

However, as per

the information

given by Madhya

Pradesh the solar

park has potential

for 500 MW

capacity.

Therefore, for

evacuation

purpose 500 MW

capacity has been

considered.

500 Intra State Transmission system strengthening in

Chhatarpur area in Madhya Pradesh

(i) 2nd circuit stringing of 220kV Tikamgarh –

Chhatarpur line.

(ii) LILO of Tikamgarh - Chhatarpur 220 kV D/c line

(both circuits) at Bijawar PS (60 km)

Connectivity System – SPPD Scope

(i) Solar park to Bijawar 400/220 kV substation 220 kV

lines along with the 220 kV bays.

5 Morena 250 Intra-State Scheme

Connectivity System – SPPD Scope

Alternative I

(i) 220kV Morena SP - Morena S/s (MPPTCL) D/c line

– 22 km

Alternative II

(i) 220kV Morena SP – Morena 400/220 substation

(ISTS) D/c line – 35 km

(ii) Two nos. of 220 kV bays at Morena 400/220

substation (ISTS

10.3. A meeting was held in CEA on 28.08.2017 to review the status of the transmission scheme

“Connectivity System for Lanco Vidarbha Thermal Power Pvt. Ltd. (LVTPPL) and Inter


State Transmission system strengthening in Chhatarpur area in Madhya Pradesh”, which is

to be implemented through TBCB but its bidding process is yet to start. M/s Rewa Ultra

Mega Solar Ltd. (RUMSL), the Solar Power Project Developer (SPPD) for development of

solar parks in Madhya Pradesh, vide their letter dated 26.08.2017 have stated that RUMSL

is unable to develop solar park at Chhatarpur and does not require associated substation in

that area, but CEA may take decision on development of proposed ISTS substation at

Chhatarpur. In the meeting, CEA had stated that establishment of Bijawar 400/220 kV

substation has been agreed as system strengthening scheme for the purpose of evacuation of

power from Chhatarpur Solar Park and also to cater the present and future power drawl

requirements in Chhatarpur area. The 220 kV outlets for Bijawar are to be implemented by

MPPTCL as intra-state system strengthening scheme. Therefore, the scheme can still be

implemented as transmission system strengthening scheme.

10.4. CEA vide its letter dated 30.08.2017 has requested MPPTCL to intimate the implementation

time frame of the intra-state strengthening scheme in Chhatarpur area (220 kV outlets from

proposed Bijawar 400/220 kV substation) also furnish the inputs regarding the tentative

location(s) of the proposed 400/220 kV substation in Chhatarpur area.

10.5. RUMS intimated that it is planning to set up 500 MW solar park in the Neemuch district

Madhya Pradesh. Considering the inputs of RUMS, in the 40th Meeting of SCPSPWR held

on 01.06.2017, the evacuation system for Neemuch Solar park i.e. three different locations

i.e. Rampura SP (150 MW), Singoli Solar Park (200 MW) and Jeeran Solar Park (150 MW)

was planned and agreed as given above. RUMS vide its letter dated 02.06.2017 has intimated

that it has identified suitable land (total of 1120 Hectares) in the vicinity of Singoli to

establish entire 500 MW at Singoli itself (instead of 150 MW at Rampura, 200 MW at Singoli

and 150 MW at Jeeran) and the solar parks at Jeeran & Rampura would not be developed.

10.6. RUMS has requested for grant of connectivity to Neemuch Solar Park in ISTS by LILO of

Chittorgarh–Nagda at Neemuch Solar Park and to establish a 400 kV or above Substation

adjacent to Neemuch solar park.


11. Additional ISTS feed to Navi Mumbai 400/220 kV substation of POWERGRID

11.1. In the 41st meeting of Standing Committee on Power System Planning in WR held on

21.12.2017 and subsequent meeting held on 13.01.2017, following transmission system was

agreed for providing ISTS feed to Navi Mumbai 400/220 kV S/s subject to implementation

feasibility of 220 kV outlets from Navi Mumbai S/s.

i. Padghe (PG)–Kharghar 400 kV D/c quad line to be terminated into one ckt. of

Kharghar–Ghatkopar 400 kV D/c line (thus forming Padghe (PG)-Kharghar 400 kV

S/c quad line and Padghe (PG)-Ghatkopar 400 kV S/c quad line)

ii. LILO of Padghe (PG) – Ghatkopar 400 kV S/c line at Navi Mumbai (PG)

iii. LILO of Taloja–Kalwa 220 kV S/c line at Navi Mumbai (PG)

iv. LILO of Apta–Kalwa 220 kV S/c line at Navi Mumbai (PG)

11.2. In line with the decision of 41st meeting of SCPSPWR held on 21.12.2017, a joint site visit

was carried out on 07.04.2017 by CEA, CTU & MSETCL, for ascertaining the


implementation feasibility of 220 kV outlets from Navi Mumbai 400/220 kV S/s. During the

site visit, it was noted that the distance of LILO point of Taloja – Kalwa 220kV S/c section

from Navi Mumbai S/s (as mentioned at sl. no. iii) is about 7 km. The implementation of this

7 km LILO length shall not be practically possible due to severe ROW issues in this area.

Accordingly, it was decided that LILO of Apta–Taloja / Kalwa 220 kV D/c line shall be

carried out at Navi Mumbai instead of earlier mentioned LILO of Apta – Kalwa & Taloja –

Kalwa 220 kV lines.

11.3. In view of the above, the modified transmission system for providing ISTS feed to Navi

Mumbai (to be implemented through TBCB route) is as below.

Transmission System for providing ISTS feed to Navi Mumbai:

Padghe (PG)–Kharghar 400 kV D/c quad line to be terminated into one ckt. of

Kharghar–Ghatkopar 400 kV D/c line (thus forming Padghe (PG) - Kharghar 400 kV

S/c quad line, Padghe (PG) - Ghatkopar 400 kV S/c quad line)

LILO of Padghe (PG) – Ghatkopar 400kV S/c line at Navi Mumbai (PG)

LILO of Apta–Taloja and Apta-Kalwa section of the Apta-Taloja/Kalwa 220 kV D/c

line at Navi Mumbai (PG)

Figure-1: Schematic Diagram of Transmission System around Mumbai area


11.4. During the joint visit, it was also decided that to ensure that power flows are well balanced

on all the 220 kV outlets from Navi Mumbai substation, MSETCL shall carry out

reconfiguration of the Kharghar – Kandalgaon 220 kV D/c line and Apta – Taloja / Kalwa

220 kV D/c at the crossing point. One of the feasible option is shown in the figure below:

Figure-2: LILO of Apta – Kalwa 220kV D/c line at Navi Mumbai S/s of POWERGRID with Interconnection of Khargar – Khandalgaon 220kV D/c line with one circuit of Apta – Kalwa 220kV D/c line along-with bunching of the other section of Khargar – Khandalgaon 220kV D/c line near location 633

11.5. MSETCL vide their letter MSETCL/CO/STU/9849 dated 07.09.2017 requested minor

modifications in above proposed system. MSETCL proposed that Padghe(PG)–Kharghar

400 kV D/C line should be terminated at 400 kV Kharghar (MSETCL) S/s instead of

terminating it to one circuit of Kharghar–Vikhroli 400 kV D/C line, as the conductor of

Padghe(PG) – Kharghar 400 kV D/C line is quad moose while conductor of Kharghar –

Vikhroli 400 kV D/C line is twin moose.

11.6. Kharghar–Vikhroli corridor is important and main feeding source to Vikhroli S/s. This

corridor is having severe RoW issues, so CEA is in view to implement Kharghar – Vikhroli

corridor with quad moose conductor / with high ampacity conductor equivalent to quad

moose. Also by terminating the Padghe–Kharghar 400 kV D/C line to one circuit of

Kharghar-Vikhroli 400 kV D/C, Kharghar S/s and Ghatkopar S/s through Navi Mumbai S/s

would be directly connected to strong ISTS source Padghe (PG).


11.7. MSETCL vide letter dated 07.09.2017 also proposed the LILO of 400 kV Talegaon (PG) –

Kalwa line at Vikhroli S/s to have an alternate source to import power from Maharashtra

grid. The LILO of Talegaon (PG) – Kalwa 400 kV line at Vikhroli only redistribute the

power and increases the interconnections which further increases the fault level at different

sub-stations.

11.8. Members may deliberate and concur the Navi Mumbai ISTS feed proposal.

12. Interim arrangement of Koradi II–Wardha 400 kV D/C quad line and power

evacuation beyond Warora.

12.1. In the 41st meeting of SCPSPWR, following measures to control fault level at Wardha were

agreed:

(i) At present Koradi II-Wardha 400 kV D/C is terminated into one ckt of Warora–Wardha

400 kV D/C line as an interim arrangement (forming Koradi-II – Wardha 400 kV S/C

line, Koradi-II–Warora 400 kV S/C line and Warora–Wardha 400 kV S/C line). Removal

of the interim arrangement through bypassing of Koradi II-Wardha 400 kV D/C line and

Wardha (PG)–Warora 400 kV line at Wardha (forming Koradi II–Warora 400 kV D/C

line) would be done after commissioning of Koradi II–Koradi III 400 kV D/C quad line.

One ckt of Koradi II – Koradi III 400 kV D/C quad line commissioned in Dec’2016 &

another circuit commissioned in Feb, 2017.

(ii) For evacuation of power from Koradi-II / Tiroda generation projects, system

strengthening was required beyond Warora 400 (MSETCL) substation. MSETCL would

finalise the transmission system strengthening beyond Warora and the same would be

intimated in the next SCM of WR.

12.2. MSETCL may intimate the restoration status of the interim arrangement and MSETCL may

present the transmission system strengthening beyond Warora.


13. High fault level at 400 kV Korba STPS (NTPC)

13.1. In the 40th meeting of SCPSPWR held on 01.06.2016, high fault level at 400 kV Korba STPS

(3 x 200 + 4 x 500) of NTPC was discussed and the following scheme was agreed to control

high fault current at Korba STPS:

(i) Korba STPS - Korba West 400 kV S/C line to be normally kept open.

(ii) Korba STPS- Sipat STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line to

be rearranged as Korba STPS- Raipur 400 kV S/C line (bypassing Sipat STPS –

bypassing arrangement at Sipat STPS is available).

13.2. CSPTCL vide its letter no. 02 – 12 / SE (C & RA) / 1016 dated 02.09.2016 intimated that

the above arrangement (i.e. Korba STPS-Korba West 400 kV S/C line in normally open

conditions) would cause overloading of the 400 kV & 220 kV lines emanating from Korba

(West) power plant under n–1–1 contingency condition and requested to review the proposal.

In view of this, in 41st meeting of SCPSPWR, it was decided to have a joint meeting among

CEA, CTU, WRPC, WRLDC & CSPTCL.


13.3. In line with the decision of the 41st meeting of SCPSPWR, a meeting was held on 22.09.2017

at CEA, New Delhi with participation from CTU, CSPTCL, WRLDC and NTPC. Minutes

of the meeting enclosed as Annexure – 13.1. In the meeting, it was agreed to carryout studies

for 2021-22 time frame for three different alternatives as give below:

Alternative 1 (A1): Korba (NTPC) – Korba (W) 400 kV S/C open + Korba(NTPC) - Sipat

STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line

bypassed at Sipat so as to form Korba STPS- Raipur 400 kV S/C line,

as proposed in 41st meeting of SCPSPWR

Alternative 2(A2): Reconfiguration of Korba (West) – Korba (NTPC) 400 kV line and

Korba (NTPC) - Sipat 400 kV S/C line as Korba (W) – Sipat 400 kV

S/C line through bypassing at Korba (NTPC).

Alternative 3(A3): Reconfiguration of Korba(W)-Korba(NTPC) 400 kV line and

Korba(NTPC)- Essar Mahan 400 kV line as Korba(W)-Essar Mahan

400 kV line through bypassing at Korba(NTPC)

13.4. As per the study results, it is seen that the fault level is in within limits for both A1 & A2. In

alternative A1, one 400 kV interconnections (Korba (NTPC) – Korba (W) 400 kV S/C line)

would not be available from both Korba(W) and Korba (NTPC) 400 kV bus. But in

alternative A2, two no. of 400 kV interconnections (Korba (NTPC) – Korba (W) 400 kV S/C

line and Korba(NTPC) - Sipat STPS 400 kV S/C line) would not be available for evacuation

of power from Korba (NTPC) 400 kV bus.

13.5. The study suggests the following alternative to control high fault current at Korba STPS

(3x200 MW + 4x500 MW) of NTPC:

i. Korba STPS - Korba West 400 kV S/C line to be normally kept open. CSPTCL to take

Korba (W) to Korba (NTPC) 400 kV S/C line into service in case of planned shutdown

of any of 400 kV lines emanating from Korba(W). This line would be normally idle

charged from one end say Korba (NTPC).

ii. Korba STPS- Sipat STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line

to be rearranged as Korba STPS- Raipur 400 kV S/C line bypassing at Sipat STPS.

(bypassing arrangement at Sipat STPS already exists).

13.6. Members agreed with the above proposal. However, CSPTCL stated that they would convey

their opinion on the proposal after consultation with their SLDC. CSPTCL may

communicate their views on the proposal.


14. Reviewing the intra state transmission system and 220 kV interconnection with Vapi –

II DNH

14.1. The following interstate transmission system, based on the joint system studies among CEA,

CTU and GETCO was proposed in the 41st meeting of SCPSPWR to cater the demand of

DNH and Daman & Diu (no space available for putting additional transformers at existing

Vapi 400/220 kV) and provide 220 feed to south Gujarat substation.


i) Establishment of 2 x 500 MVA, 400/220 kV S/s near Vapi / Ambheti (Vapi – II)

ii) LILO of KAPP – Vapi 400 kV D/c line at Vapi – II

iii) 1 x 125 MVAr bus reactor at Vapi – II Substation

220 kV connectivity from Vapi – II is given below:

(a) For Gujarat (GETCO)

Vapi-II – Atul (GETCO) 220kV D/c line

LILO of Chikhli (Ambetha) – Vapi (GETCO) 220 kV S/c line at Vapi-II

(b) For Dadra and Nagar Haveli (DNHPDCL)

Vapi-II – Sayali (DNH) 220 kV D/c line (high capacity)

Vapi-II – New Kharadpada (DNH) 220 kV D/c line (high capacity)

14.2. In the 41st meeting of SCPSPWR held on 21.12.2016, it was observed that Vapi–Khadoli

220 kV D/C line and Vapi – Kharadpapda 220 kV D/C line were lightly loaded and there is

a space constraint at Sayali and severe RoW problems in implementation of these lines.

Therefore, it was agreed to review the intrastate network of DNH & its interconnection with

Vapi II separately.

14.3. Accordingly, a meeting was held among CEA, CTU & PGCIL on 01.06.2017 and

02.06.2017 at Silavassa, DNH (Minutes of the Meeting are enclosed as Annexure – 14.1).

In the meeting, interconnection from the Vapi-II & intra state constraints in the DNH

network (based on the comprehensive system study report in the 2021-22 time frame

submitted by POWERGRID), was discussed and after the detailed deliberations, the

following system was agreed:

I. 220 kV connectivity from 400/220 kV, 2x500 MVA Vapi–II substation to DNH

(Transmission System under ISTS)

a. Vapi-II–Sayali 220kV D/C line (From Vapi-II to LILO point of one circuit of

Vapi(PG)–Khadoli 220kV D/C line at Sayali substation with ampacity equivalent

to twin zebra conductor).

b. Interconnection with LILO section (of LILO of one circuit of Vapi(PG) –Khadoli

220kV D/C line at Sayali substation) so as to form Vapi-II–Sayali 220 kV D/C line

and Vapi-Khadoli 220 kV D/C line. The LILO section is with zebra conductor.

II. Intra State system strengthening in DNH transmission network

220 kV system

a. Kala – Khadoli 220 kV (2nd) D/C line.

b. Establishment of 220 kV switching station at Bhilosa (GIS) with provision of 8 nos.

of 220 kV bays (4 nos. equipped line bays and 4 nos. future bays). (Out of the 4

equipped line bays, 2 nos. line bays are for LILO of one ckt. of Vapi- Kharadpada

220 kV D/C line at Bhilosa and 2 nos. line bays are for Bhilosa industries)

c. LILO of one ckt. of Vapi-Kharadpada 220 kV D/C line at Bhilosa.

d. Establishment of Vagchipa 220/66 kV, 2x160 MVA substation by LILO of both ckts

of Vapi – Khadoli 220 kV D/C line. (already under implementation).


e. Conversion of Sayali 220 kV switching station to 2x100 MVA, 220/66 kV

substation.

f. Conductor replacement of the LILO section (of LILO of one circuit of Vapi(PG) –

Khadoli 220kV D/C line at Sayali substation) with ampacity equivalent to twin

zebra conductor depending on the loading of the lines in future, if required.

66 kV system

g. Establishment of three 66kV circuits between Vaghchipa & Dadra

h. Establishment of three 66kV circuits between Vaghchipa & Amli

i. 66 kV Vaghchipa – Silli D/C line

j. Establishment of Sayali new 66/11 kV substation with LILO of Sayali 220/66 kV-

Rakholi 66 kV D/Cline at Sayali new and LILO of Masat – Khadoli 66kV S/C line

at Sayali New 66/11kV S/s.

k. Amli- Silvassa Town 66 kV D/C line.

l. Shifting of about 20MVA bulk load from Amli to Silli

14.4. Accordingly, the scheme for establishment of new 400/220 kV substation in Vapi/Ambethi

area and its associated transmission lines as system strengthening scheme in WR is as given

below:

Establishment of new 400/220 kV substation in Vapi/Ambethi area and its associated

transmission lines (under ISTS):

i) Establishment of 2 x 500 MVA, 400/220 kV S/s near Vapi / Ambheti (Vapi – II)

ii) LILO of both circuits of KAPP – Vapi 400 kV D/c line at Vapi – II

iii) 1 x 125 MVAr bus reactor at Vapi – II Substation

iv) Vapi-II – Sayali D/C 220kV line

From Vapi-II to LILO point of one circuit of Vapi(PG) –Khadoli 220kV D/C line

at Sayali substation with ampacity equivalent to twin zebra conductor.

Interconnection with LILO section (of LILO of one circuit of Vapi(PG) –Khadoli

220kV D/C line at Sayali substation) so as to form Vapi-II – Sayali 220 kV D/C

line and Vapi- Khadoli 220 kV D/C line. The LILO section is with zebra

conductor.

220 kV outlets to be implemented by GETCO in matching time frame of the above

scheme is given below:

a) Vapi-II–Atul (GETCO) 220kV D/c line

b) LILO of Chikhli (Ambetha)–Vapi (GETCO) 220 kV S/c line at Vapi-II

14.5. POWERGRID has suggested that DNHPDCL may implement reconductoring of the LILO

section (of LILO of one circuit of Vapi(PG)–Khadoli 220kV D/C line at Sayali substation)

with high capacity conductor with ampacity equivalent to twin zebra conductor in matching

time-frame of the ISTS line i.e., Vapi-II – Sayali D/C 220kV line

14.6. The intrastate system of DNH also includes establishment of 220 kV switching station at

Bhilosa (GIS) with LILO of one ckt. of Vapi – Kharadpada 220 kV D/C line at Bhilosa. The

scheme has already been discussed and agreed in the meeting held among CEA, CTU &

PGCIL from 01.06.2017 to 02.06.2017 at Silavassa. The scheme involves LILO of an


interstate line, therefore the scheme, as given below, has been put for approval of WR

constituents:

a. Establishment of 220 kV switching station at Bhilosa (GIS) with provision of 8 nos. of

220 kV bays (4 nos. equipped line bays and 4 nos. future bays). (Out of the 4 equipped

line bays, 2 nos. line bays are for LILO of one ckt. of Vapi- Kharadpada 220 kV D/C line

at Bhilosa and 2 nos. line bays are for Bhilosa industries)

b. LILO of one ckt. of Vapi- Kharadpada 220 kV D/C line at Bhilosa.

14.7. CEA has conveyed in principle approval of the scheme to DNH.

14.8. Member may concur the same.

15. Charging of 400 kV Solapur PG – Karad line on 220 kV level for resolving low voltage

problems in Solapur District

15.1. MSETCL vide its letter no. MSETCL/CO/STU/2818 dated 18.03.2017 has sent the proposal

of charging a part of the existing 400 kV Solapur (PG) – Karad S/C line at 220 kV level

using one circuit of under construction Solapur (PG)-Bale 220 kV D/C line as an interim

arrangement to CEA. The proposal was to resolve low voltage problems in Solapur District

during agriculture peak load. Parli–Karad 400 kV S/C line is LILOed at 400 kV Lamboti S/s

(i.e. Solapur - MSETCL). Subsequently, under WRTS–II, LILO of 400 kV Lamboti – Karad

S/C line at Solapur (PG) was implemented by M/s Reliance Power Transmission Limited

(RPTL). The schematic of the proposal is as given below:

Schematic diagram in the vicinity of Lamboti

15.2. The 220 kV substations at Pandharpur, Malinagar, Jeur, Tembhurni and Karkambh of

Solapur district are presently fed from 400/220 kV Lamboti S/s through radially connected

220 kV Lamboti–Karkambh–Jeur (189 km) line and 220 kV Lamboti–Pandarpur–Malinagar–Tembhurni–Jeur (166 km) line. However, during the peak agriculture load (6


AM to 12 Noon), power flow through these lines is beyond their SIL limit thus, the low

voltage is observed at all above substations along with 400 kV Lamboti S/s i.e. up to 370

kV. In order to address this low voltage problem, 220 kV Solapur (PG) – Bale D/C was

planned and the same is under implementation (expected to be commissioned by September

2017). Further a 400/220 kV, 2x500 MVA S/s at Tembhurni / Karjat is also planned in 2021–22 time frame to mitigate the low voltage problem.

15.3. The above interim arrangement has been discussed in 493rd OCC meeting held on 10th

March, 2017 at Vindhyachal, wherein, it was deliberated that any reconfiguration of the

network would require approval of CEA / CTU and the Reliance Power Transmission Ltd.

15.4. To discuss the proposal of MSETCL, a meeting was held on 12.04.2017 at CEA, New Delhi

among CEA, CTU, POSOCO, MSETCL and RPTL. Minutes are enclosed as Annexure –

15.1. In the meeting the following was agreed:

i) The proposal of MSETCL as shown in the block diagram above was agreed as an interim

arrangement to mitigate the low voltage problem faced in Solapur district.

ii) The interim arrangement shall be disconnected by Dec, 2017 or after the completion of

Solapur (PG) – Bale 220 kV D/C line, whichever is earlier.

iii) The above proposal is agreed in principle and the proposal would be put up in

forthcoming meeting of the Standing Committee on Power System Planning of Western

Region for ratification.

iv) All the expenditure for implementation of the interim arrangement and its restoration

shall be borne by M/s MSETCL.

v) MSETCL shall expedite the implementation of 400/220 kV Tembhurni / Karjat sub-

station along with upstream and downstream network.

vi) MSETCL shall implement Under Voltage Load Shedding (UVLS) relays at all its S/s at

the earliest and provide adequate reactive compensation at 33 kV and below voltage

level in Solapur district at the earliest.

vii) MSETCL shall explore interconnection between Solapur (PG) – Lamboti (MSETCL)

by using LILO portions of Parli - Karad 400 kV line at Solapur (PG) and Lamboti.

viii) The idle section of Solapur (PG) – Karad 400kV S/c line along with the line bays at

Solapur (PG) end shall be deemed 100% available subjected to regulatory norms.

15.5. MSETCL vide their letter dated 07.09.2017 has informed that the interim arrangement was

implemented by MSETCL on 03.05.3017. The improvement in voltage profile after

implementation of the scheme is given below:


15.6. The implementation of the interim arrangement has resulted in following benefits:

i) Voltage profile of Pandharpur, Jeur Grid increased from 7 to 14 kV

ii) Low voltage & hunting problem resolved. Now, Minimum voltage always above 198kV

iii) System Stability improved

iv) Additional Source from power grid

v) ICT loading of lamboti reduced

vi) Over Loading of Lamboti – Pandharpur & Lamboti – Karkamb/Khanapur has reduced.


vii) Utilization of ICT capacity at PGCIL

15.7. In view of above, MSETCL has requested to approve the above proposal for charging of 400

kV Solapur PG – Karad line on 220 kV Level as an interim arrangement till commissioning

of proposed 400/220 kV Karjat S/s.

15.8. MSETCL may furnish the following details:

i) Status of Solapur (PG) – Bale 220 kV D/C line.

ii) Status of the implementation of 400/220 kV Tembhurni / Karjat sub-station along with

upstream and downstream network. Details of the 400 kV interconnections and 220 kV

interconnections may be provided.

iii) Status of Under Voltage Load Shedding (UVLS) relays at all its S/s at the earliest and

provide adequate reactive compensation at 33 kV and below voltage level in Solapur

district at the earliest.

iv) Feasibility of interconnection between Solapur (PG) – Lamboti (MSETCL) by using

LILO portions of Parli-Karad 400 kV line at Solapur (PG) and Lamboti.

15.9. Members may concur the interim arrangement approved in the meeting held on 12.04.2017

at CEA, New Delhi till Dec, 2017 or after the completion of Solapur (PG) – Bale 220 kV

D/C line, whichever is earlier.

15.10. Members may deliberate on the proposal of MSETCL for charging of 400 kV Solapur PG

– Karad line on 220 kV Level as an interim arrangement till commissioning of proposed

400/220 kV Karjat S/s.

16. Progress of downstream network whose terminating bays are under construction by

POWERGRID

16.1. The 5.4. Proviso (iii) of Indian Electricity Grid Code (IEGC) (Fourth Amendment)

Regulations, 2016, of CERC dated 06.04.2016 is as follows:

“Where the transmission system executed by a transmission licensee is required to be

connected to the transmission system executed by any other transmission licensee and both

transmission systems are executed in a manner other than through tariff based competitive

bidding, the transmission licensee shall endeavor to match the commissioning of its

transmission system with the transmission system of the other licensee as far as practicable

and shall ensure the same through an appropriate Implementation Agreement.”

16.2. The purpose of the above provision of signing of Implementation Agreement (IA) between

the parties involved is that both the upstream and downstream network may be completed in

the matching timeframe to avoid any situation of transmission system remaining unutilized.

16.3. In WR there are many instances where 400/220 kV substation along with the associated 220

kV bays have already been commissioned as ISTS assets, but the 220 kV line bays are still

unutilized due to delay in completion of the associated 220 kV lines. Presently, many

400/220 kV substation are under implementation and in order optimize the asset utilization,

it is required that downstream 220 kV networks is also implemented in the matching


timeframe. In view of this, STUs are requested to furnish/ update the status of execution of

downstream network indicated in the table below:

Status of unutilised 220kV line bays at Existing Substations in WR

Sl ISTS

Substation

Voltage ratio

in use

Status of Bays

220kV Lines for

unutilized bays

Status of 220kV

lines as per 41st

meeting dated

21.12.2016

Total Unutilized

1 Raipur (PG) 3x315MVA,

400/220 kV 6

2 no bays

ready since

01.07.2011

(WRSS-6)

Raipur (PG) –

Doma 220 kV D/c

Completion by

January 2017

2 Mapusa (PG) 3x315MVA,

400/220kV 4

2 nos Bays

ready since :

01.11.2013

Mapusa – Cuncolin

220 kV D/c No participation

3 Pirana 2x315MVA,

400/220kV 4

2 nos Bays

ready since

19.03.15

(WRSS-6)

Pirana – Barjadi

220 kV D/c

Tender floated ,

completion by

June 2018

4 Boisar

2x315

+500MVA,

400/220kV

6

1 no Bay

ready since

30.05.15

Boisar – Borivali

220 kV line S/c

Completion by

June 2017

5 Magarwada 2x315MVA,

400/220kV 4

2 nos Bays

ready since

03/11/14

Magarwada –

Ringanwada 220

kV D/c

No participation

6 Wardha 2x315MVA,

400/220kV 6

2 nos Bays

ready since

01.02.2011

Wardha- Yavatmal

220 kV D/C line June 2017

2 nos Bays

ready since

01.01.2012

Wardha – Bhugaon

220 kV S/c

Commissioned in

August 2016

Wardha –

Pusad220kV S/c

Commissioned in

August 2016

7 Solapur

2x315

+1x500MVA,

400/220kV

6

2 nos Bays

ready since

01.04.2011

Solapur – Bhale

(MS) 220kV D/c September 2017

2 nos Bays

ready since

02.11.2015

Solapur –

Narangwadi 220

kV D/c line

Narangwadi 220

kV substation

planned in 2019-

20 time frame.

8 Damoh 1 x 500 MVA

400/220 kV 6

2 no. of bays

ready since

Nov – 2016

LILO of 2nd

220kV circuit of

Damoh (MPPTCL)

- Sagar 220kV line

at Damoh (PGCIL)

400kV S/s. (1Km)

Targeted to be

completed by May

2017


Status of Under Construction 220 kV line bays at New Substations / Substation

Extensions in WR

S.

No. ISTS Substation

Proposed

Bays

Comm.

Schedule

220kV Lines emanating

from Substation

Status of

220kV lines

as per 41st

WR SCM

dtd

21.12.2016

Remarks

1 Betul GIS 2x315

MVA, 400/220 kV 4

Commissio

ned

(i) Betul (PG) - Betul D/C

220 kV line (3 Km)

targeted to

complete by

March 2017

ii) LILO of Sarni -

Pandhurna 220kV line at

Betul GIS(PGCIL) 400

kV S/s (41 Km).

targeted to

complete by

Jan 2018

2 Morena (TBCB) 2

x 315, 400/220 kV 4

May’18

(Chhattisgar

h & WR

SS)

i) LILO of one circuit of

Malanpur – Mehgaon

220kV line at Morena

(TBCB) 400kV S/s (8Km

from Loc. No.12).

ii) Morena(TBCB)400 -

Sabalgarh 220kV DCDS

line (92Km) with LILO of

one circuit of

Morena(TBCB)400 -

Sabalgarh 220kV line at

Morena 220kV S/s of

MPPTCL (0.5Km)

targeted to

complete by

March 2018

3 Navi Mumbai 2 x

315, 400/220 kV 4

Bays ready

since

Mar’14

(WRSS-V)

STU line Planned

Severe

RoW

issues are

involved

4

Indore (PG) 2x500

MVA,

400/220 kV

6

Jul’18

(WRSS-14)

LILO of both circuit of

Indore-II (Jaitpura) -

Ujjain 220 kV line at

Indore (PGCIL) 765 kV

S/s. (2X4Km)

Targeted to

complete by

March 2018

(ii) Remaining 2 Nos.

feeders from

Indore(PGCIL) 765kV S/s

shall be intimated at later

stage

5

Itarsi (PG) 1x500

MVA,

400/220 kV

2 Jul’18

(WRSS-14)

LILO of 2nd 220kV circuit

of Itarsi (MPPTCL) -

Hoshangabad 220 kV line

In line with

scheduled


at Itarsi (PGCIL) 400kV

S/s (Existing)

date of ICT

i.e. July 2018

6 Parli (PG) 2x500

MVA, 400/220 kV 4

Jun/Jul’18

(WRSS-16)

LILO of Parli - Harngul

220 kV S/c Dec, 2018

LILO of Osmanabad (MS)

- Parli 220 kV S/c Dec, 2018

7

Mapusa (PG)

3X315 MVA,

400/220

2 Jun/Jul’18

(WRSS-16)

Mapusa - Tuem 220 kV

D/c UC

8 Satna (PG) 1x500

MVA, 400/220 kV 2

Jun/Jul’18

(WRSS-16)

LILO of one circuit of

Satna (MPPTCL) -

Chhatarpur 220 kV line at

Satna (PGCIL) 400 kV S/s

(3Km)

Targeted to

complete by

March- 2018

9

Vadodara GIS 2 x

500 MVA,

400/220 kV

4 March –

2017

220 kV Venkatpura-

Vadodara D/C Line

220 KV Jambua –

Vadodara D/C Line

Dec, 2017

Dec, 2018

10

Bijawar (TBCB) 2

x 500 MVA,

400/220 kV

4 RfQ stage

LILO of Tikamgarh –

Chhattarpur 220kV D/c

line at Bijawar

To be

awarded

11

Navsari

2x315MVA +

1x500MVA,

400/220kV

2 May’18 Navsari – Bhestan 220kV

D/c line

Scheduled

COD :

May’18

DGENTPL

has

confirmed

that they

are not

taking up

implementa

tion of the

scheme

12 Rewa PS 3x500

MVA, 400/220kV 6 Oct’17

Rewa UMSPP – Rewa PS

220kV 3xD/c line

UC by Rewa

UMSPP

Matching

with

Generation

Project

13 Khandwa 1x500

MVA, 400/220kV 2 Sep’19

Khandwa – Chamera

220kV D/c line UC

STU to make all effort to maintain the time schedule indicated.

16.4. Members may deliberate this.


17. Requirement of Transformer Augmentation in Western Region – Agenda by

POWERGRID

17.1. Several 400/220 kV ICTs in WR are getting critically loaded in current time frame. In case

of tripping of one ICT in that S/s, the situation becomes critical as the parallel ICT gets

overloaded. Studies have been carried out and the list of transformers with high anticipated

loadings in 2021-22 time frame (peak file) and which violate N-1 criteria is given below:

17.2. In view of the above, following is proposed:

Augmentation of 400/220 kV transformation capacity at Jabalpur(PG) S/s by 500 MVA

Replacement of 315 MVA, 400/220kV transformer at Itarsi (PG) S/s by 500 MVA ICT

and shifting the 315 MVA ICT thus freed to Gwalior as 4th 400/220 kV ICT

Augmentation of 400/220 kV transformation capacity at Magarwada (PG) S/s by 500

MVA

17.3. Subsequently, MPPTCL vide its letter no. 04 – 02 /n – 171 / 2601 dated 16.10.2017 intimated

that the existing 2 x 315 MVA ICTs at Jabalpur (PG) are feeding Jabalpur, Panagar and

Narsinghpur 220 kV S/s. The max loading on these ICTs observed in April – 2017 as 287.16

MW and generally the loading on these ICTs is around 200 MVA on each throughout the

year. It is also mentioned that under n – 1 contingency of above transformers, it is very

difficult to manage the loads of Jabalpur & Narsinghpur. Therefore, it is proposed to install

additional 1 x 500 MVA or 1 x 315 MVA ICT at Jabalpur (PG) S/s.


18. Provision of Bus Reactor at Champa Pool 400 kV Split bus Section – A – Agenda by

POWERGRID

REGION / TRANSFORMER

EXISTING

/PLANNED

TRANSFORME

RS (MVA)

CURRENT TIME FRAME 2021-22 TIME FRAME

PEAK

LOADING

(MW)

AVERAGE

LOADING

(MW)

PEAK

LOADING

(MW)

N-1 Outage loading

(MW)

WR-II JABALPUR 400/220kV 2x315 2x285 2x169 2x284 1x399 (315MVA

outage)

WR-II ITARSI 400/220kV 1x315 + 1x500* 1x274 1x217 1x224+1x3

55

1x306 (500 MVA

outage)

WR-II GWALIOR 400/220kV 3x315 3x257 3x187 3x228 2x294 (315 MVA

outage)

WR-II MAGARWADA 400/220kV 2x315 2x139 2x88 2x201

1x358 (315MVA

outage) with

Magarwada 220kV

(D&D) bus split &

1x317 (315MVA

outage) without the split

arrangement

*Additional 500MVA ICT under implementation (under WRSS-14 scheme by POWERGRID)


18.1. During the 39th meeting of SCPSPWR held on 30.11.2015, the following split bus

arrangement was agreed at Champa P.S.

i. Champa Pooling Station after BUS Splitting:

Champa Pool Voltage

Level(in kV)

Description BUS Section A BUS Section B

400

Generation (in MW) Available 4920 4520

BUS Reactor (in MVAR)

Available 2x80 1x80

765/400 kV ICT(in

MVA)

Available 3x1500 3x1500

765 BUS Reactor (in MVAR)

Available - 240

Proposed 240 -

18.2. Under the proposed splitting arrangement, 2x80MVAr bus reactor under Section A of

Champa 400 kV bus was inadvertently mentioned as “available” whereas only space for

2x80 MVAr Bus Reactors is available at Section A of Champa 400 kV bus. With the above

agreed splitting arrangement, the existing one 80 MVAr Bus Reactor at Champa Pooling

Station would be on Section B of 400 kV bus (mentioned under Bus Section B in the table

above). Hence, no bus reactor would be available at split section A of Champa 400kV bus

post the under-implementation splitting arrangement.

18.3. Accordingly, it is proposed to install a 420 kV, 1x125 MVAr bus reactor at Champa Split

section A for voltage control purpose as the Split Section A shall be operating as an

independent substation after splitting.



19. Transmission System associated with DGEN TPS (4x300MW) under implementation

by DGEN Transmission Co. Ltd.

19.1. DGEN-Vadodara 400 kV D/C line and Navsari – Bhestan 220 kV D/C line has been awarded

to DGEN Transmission Company Ltd (DGENTCL) through tariff based competitive bidding

route for evacuation of power from DGEN TPS (3x400 MW) with commissioning schedule

of May 2018. The zero date of the project is 17.03.2015 and M/S DGENTCL has not yet

taken up the implementation of the scheme as per the execution plan submitted by them.

19.2. In a meeting held at CEA on 26.04.2017, it was decided that Torrent Energy Ltd shall initiate

action as per relevant clause of TSA as M/s DGENTCL has confirmed that they are not

taking up the implementation of the project. Further, CEA shall inform the status of project

to CERC in due course. In the same meeting, representative from Torrent Energy Ltd.

informed that all three units of 1200 MW DGEN gas based power project at Dahej near

Bharuch in South Gujarat have been commissioned along with dedicated connectivity line

(DGEN- Navsari 400 kV D/C line. They are not able to run the power plant at full load due

to unavailability of gas. In case of gas availability and absence of DGEN-Vadodara 400 kV

D/C line, there may be constraint in evacuation of power from DGEN plant.

19.3. In view of the above, future course of action regarding transmission system associated with

DGEN TPS (4x300MW) may be deliberated upon by the constituents.

20. Charging of 2x330 MVAR Line Reactors of Dharamjaygarh – Jharsuguda 765kV 2nd

D/c line as Bus Reactor at 765/400 kV Dharamjaygarh Substation

20.1. 765 kV Bus voltage of Dharamjaygarh Substation remains high for most of the time and to

control overvoltage problem in spite of all the reactors remaining in service either as Bus

reactor or line reactor, opening of 765 kV lines is required. During the months of May’17 to

Jul’17, the maximum & minimum voltages observed at Dharamjaygarh 765kV bus were

802kV and 765kV respectively and voltages remained in the range of 781kV to 800kV for

more than 70% of the time. The voltage profile at Dharamjaygarh substation is as given

below:

0.0

29.5

61.6

8.8 0.1

Percentage Voltage Distribution - D'jaygarh

765kV Bus Voltage

Below 765KV

765 - 780

781-790

791-800

Above 800


20.2. The bays associated with 765kV Jharsuguda-Dharamjaygarh Ckt 3 & 4 along with 2x330

MVAR line reactors are ready for charging at Dharamjaygarh substation, whereas the

construction of the line is in progress and is expected to be completed by March 18.

20.3. In view of above, POWERGRID has proposed to charge the 2x330 MVAR Line Reactors

as bus reactors (utilizing Jharsuguda Ckt # 3 & 4 bays) till such time the 765 kV Jharsuguda-

Dharamjaygarh Ckt 3 & 4 is completed. System studies indicate a voltage sensitivity of about

2.5kV per 330MVAr reactor switching. Accordingly, the reactors may be utilized based on

requirement of system condition to control High Voltage encountered at Dharamjaygarh

substation.


21. Interconnection of MSETCL lines with PGCIL lines or S/s

21.1. MSETCL vide its letter no. MSETCL/CO/STU/5607 dated 29.05.2017 (copy enclosed as

annexure – 21.1) intimated that in its five year plan (from 2017–18 to 2021–22), it has

proposed to interconnect some of its existing or upcoming new lines / substations with

PGCIL network and requested to take up the same in the meeting of SCPSPWR.

21.2. The list of elements of MSETCL are as follows:

S.

No.

Transmission Elements PGCIL S/s Target

Year

1 LILO of 400 kV Talegaon (PG) – Kalwa at Vikhroli Talegaon 2021 – 22

2 Wardha (PG) – Yavatmal 220 kV D/C Wardha 2017 - 18

3 Solapur (PG) – Bale 220 kV D/C Solapur 2016 – 17

4 Conversion of existing 220 kV S/C Urse – Chinchwad line to M/C for

portion between Chinchwad S/s to prop 220 kV Talegaon PGCIL line LILO

point (Loc no. 50)

Talegaon 2016 – 17

5 LILO of one Ckt. of 400 kV Tarapur – Padghe D/C at Kudus (Padghe II) Padghe /

Kudus

2017 – 18

6 LILO of one Ckt. of Aurangabad (PG ) – Shendra D/C at Phulambri Aurangabad 2019 – 20

7 LILO of 220 kV Parli – Harangul S/C at Parli (PG) Parli 2018 – 19

8 LILO of Parli – Osmanabad S/C at Parli (PG) Parli 2018 – 19

9 LILO of 2nd Ckt of South Solapur – Kolhapur D/C at Alkud 400 kV S/s Solapur 2016 – 17

10 LILO of both ckts of Parli (PG) – Pune (PG) 400 kV D/C at Lonikhand II Pune 2017 – 18

11 LILO of one ckt. Of 220 kV Borivali – Boisar (M) M/C line at Boisar (PG)

and 220 kV Nalasopara at Boisar PG Idle line

Boisar 2016 – 17

12 LILO of both ckts of Dhule – SSP 400 kV D/C at Balsane PS Dhule / SSP 2019 – 20



22. Declaration of 132 kV Nepanagar (Madhya Pradesh) – Dharni (Maharashtra) line as

ISTS line – proposal by MSETCL

22.1. MSETCL vide its letter no. MSETCL/CO/STU/9849 dated 07.09.2017 intimated that 132

kV Nepanagar (Madhya Pradesh)–Dharni (Maharashtra) line (approx. 60 km) has been

charged on 09.02.2017 in radial mode and power was flowing towards Maharashtra

successfully through this line since 16.02.2017. As it is interconnected between two states,

it is requested to declare this line as an ISTS line (Inter State Transmission System).


23. Advancement in schedule of 2 no. of 220 kV line bays at Khandwa (PG) 400/220 kV S/s

associated with 1 x 500 MVA, 400/220 kV, 3rd ICT

23.1. MPPTCL vide its letter no. 04-02/N-171/2223 dated 29.08.2017 intimated that 1 x 500

MVA, 400/220 kV 3rd ICT at Khandwa was agreed in 39th meeting of SCPSPWR held on

30.11.2015 and 2 no. of 220 kV line bays were agreed the 41st meeting of SCPSPWR held

on 21.12.2016.

23.2. In this regards, MPPTCL intimated that the downstream network associated with above ICT

is 220 kV Chhenera – Khandwa (PG) D/C line and the same has been already awarded and

expected to get completed by Dec, 2018. However, the target for completion of 500 MVA,

400/220 kV 3rd ICT at Khandwa along with 2 no. of 220 kV bays is September, 2019. In

view of this, it is requested to implement the ICT in matching time frame of its downstream

i.e. Dec, 2018.


24. Provision of 400/220 kV, 2x500 MVA ICT at Kakrapar Nuclear Power Station –

proposal by GETCO

24.1. GETCO vide its letter no. STU/511/13 dated 04.09.2017 has intimated that installed capacity

of KAPP is 2x220 MW (Unit–1 & 2) and work is under progress for Units 3 & 4 (2 x 700

MW). The Associated Transmission System (ATS) for KAPP is as follows:

(i) KAPP – Navsari 400 kV D/C

(ii) KAPP – Vapi (PG) 400 kV D/C

(iii) KAPP – Vav 220 kV D/C

(iv) KAPP – Vapi 220 kV D/C

(v) KAPP – Haldarwa 220 kV D/C

24.2. Presently, the 400 kV switchyard and 220 kV switchyard at KAPP are operating in isolated

mode. GETCO has informed that during low / no generation at KAPP, the power is flowing

from Haldarwa to Vav & Vapi through 220 kV Haldarwa–KAPP D/C and KAPP–Vav 220

kV D/C & KAPP–Vapi 220 kV D/C, thus some of the 220 kV lines in this area getting over

loaded.


24.3. In view of this, GETCO has proposed for 2 x 500 MVA, 400/220 kV ICT at KAPP.


25. Installation of 2 x 50MVA, 220/33kV transformer with 10 Nos. 33kV feeder bays at

220kV Jabalpur substation

25.1. Jabalpur 400/220 kV sub-station of POWERGRID presently has 2x315 MVA, 400/220 kV

ICTs and the 220kV & 132kV works including 220kV bus and 220kV side ICT bays located

in the same premises are owned by MPPTCL. NTPC (then owner of Jabalpur 400kV sub-

station) vide letter dated 22-05-1987 had allowed MPPTCL (then MPEB) to carry out

220/132kV extension works at its Jabalpur sub-station subject to inter-alia the following

conditions:

MPEB will not provide any 132/33 kV extension at Jabalpur 400kV sub-station

MPEB shall not construct any staff quarter in the space given by NTPC

The ownership of the land allotted to MPEB for 220/132kV extension rests with NTPC

25.2. Now, MPPTCL vide letter dated 10.04.2017 has requested POWERGRID to provide consent

towards the installation of 2x50MVA, 220/33kV transformer along with 10 nos. 33 kV

outgoing feeders (to be implemented by MPPTCL) to cater to future load growth of Jabalpur

& surrounding area. The existing 33kV auxiliary supply to Jabalpur substation is from a

16km long 33kV line from 220/132/33kV MPPTCL substation, which is not reliable. Hence,

the proposed 220/33kV ICTs shall also help to provide reliable auxiliary supply to Jabalpur

(PG) substation.

25.3. Considering the planned augmentations, a further increase in the loading of Jabalpur ICTs is

expected in future. Therefore, to feed the additional load requirement of MPPTCL with

reliability and n-1 security may require augmentation of transformation capacity at

400/220kV Jabalpur substation.


26. Retention of LILO of 400kV Khandwa- Rajgarh at Khangone – Agenda by NTPC

26.1. NTPC has intimated that one double circuit line has been approved for many of recently

approved NTPC projects namely Darlipalli, Khargone, Rihand III. Under planned shutdown

of any one line, as per operational practice Auto reclose of second line is blocked. This has

resulted in station blackout and damage to LP turbine diaphragm due to loss of cooling water

(Mouda). It takes minimum 6-8 hours to replace the diaphragm, subject to availability of

spares if required to be replaced for multiple units. Even if Single Phase Auto Reclose is

kept enabled, during dead time, generators will be subjected to very high Negative sequence

current (Rotor heating) and torsional stress.

26.2. The approved transmission system meets transmission planning criteria, above facts may

also be taken into consideration at planning stage. NTPC has proposed the following:

a) Provision of at least two D/C lines preferably to two different substation may be

considered for new projects as immediate transmission system.


b) For Khargone TPS, the LILO of 400kV Khandwa-Rajgarh at Khangone may be

allowed to be retained.

26.3. The following transmission system associated with Khargone TPP has been agreed and the

same is under implementation through tariff based competitive bidding route:

1. Connectivity system for Khargone STPP

(i) LILO of one ckt of Rajgarh-Khandwa 400kV D/C line at Khargone TPP (The LILO

shall be used for startup power and commissioning activities requirement. After

commissioning of balance transmission system, the LILO would be bypassed at

Khargone generation switchyard and may be utilized only under contingency

condition)

(ii) Khargone TPP Switchyard – Khandwa pool 400 kV D/C (Quad) line

2. System strengthening in WR in time frame of Khargone TPP

(i) Khandwa Pool – Indore 765kV D/C line

(ii) Khandwa Pool – Dhule 765 kV D/C line

(iii) Establishment of 765/400kV, 2x1500MVA pooling station at Khandwa pool

26.4. As per the approved scheme the LILO shall be used for startup power and commissioning

activities requirement. After commissioning of balance transmission system, the LILO

would be bypassed at Khargone generation switchyard and may be utilized only under

contingency condition. Now NTPC has requested to retain the LILO on continuous basis for

evacuation of power.


1

Annexure - 2.1 Status of TBCB Transmission Projects - Western Region

S.N. Name of the Project BPC / Implementing Agency / Milestones

Scope of works Current Status

1 System Strengthening in NR for import of power from North Karanpura and other projects outside NR and System Strengthening in WR for import of power from North Karanpura and other projects outside Western Region and also for projects within Western Region. Estimated Cost Rs. 2700 Cr

REC NKTCL (Reliance Power Transmission Company Ltd) Milestones:

(i) SPV acquired by Reliance on 20-05-2010 (ii) Approval u/s 164 received on 12.08.2013.

(i) Sipat/Korba (Pooling) - Seoni 400 kV D/C line (ii) Lucknow - Bareilly 765 kV D/C line (iii) Bareilly - Meerut 765 kV D/C line (iv) Agra - Gurgaon(ITP) 400 kV D/C line (v) Gurgaon (ITP) - Gurgaon (PG) 400 kV D/C line (vi) Gurgaon (ITP) 400/220 kV GIS Substation

Matter was in CERC for revision of tariff and extension of date of commissioning. NKTCL filed an appeal in appellate tribunal challenging CERC order of 9.5.2013. Appellate Tribunal has given final judgment on 2.12.13 setting aside CERC order and allowing the appeal. NKTCL is initiating steps for implementing of order. The judgment of Appellate Tribunal accepts delay in clearance under section-164 as force majeure. According NKTCL have requested MoP to extend the validity of section 68 clearance vide their letter dated 14.1.2014. Beneficiaries have appealed SC. SC on 12th August has disposed of the appeal and directed ATE to decide on the appeal. Work Yet to start.

2 Transmission System Associated with Krishnapattnam UMPP- Synchronous interconnection between SR and WR (Part-B) Estimated Cost Rs. 440 Cr

REC RSTCL (Consortium of Patel-Simplex- BS Transcomm) Milestones: (i) LoI placed on 16.12.2010 (ii) SPV acquired on 07.01.2011 (iii) Trans. license received on 24.08.2011 (iv) Approval u/s 164 received on 29.08.2011

Tariff adoption on 12.8.2011

(i) Raichur - Sholapur 765 kV S/C line-1 (208 ckm)

Commissioned in 06/2014

3 System strengthening common for WR and NR Estimated Cost Rs. 1720 Cr

PFC Jabalpur Transmission Company Limited (Sterlite Grid) Milestones: (i) LOI placed on 31.01.2011 (ii) Special Purpose Vehicle acquired on 31.03.2011 (iii) Scheduled Completion Date is 31.03.2014. (iv) Transmission License granted on 12.10.2011. (v) Tariff adoption approval on 28.10.2011

(i) Dhramjaygarh - Jabalpur 765 kV D/C

(ii) Jabalpur - Bina 765 kV S/C line

Line commissioned in 09/2015 Line commissioned in 06/2015

2



(vi) Clearance under Section 164 : received on 12.07.13

4 System strengthening for WR Estimated Cost Rs. 2900 Cr

PFC BDTCL(Sterlite Grid) Milestones: (i) LoI placed on 19.1.2011 (ii) SPV acquired on 31.3.2011 (iii) Trans. license received on 12.10.2011 (iv) Approval u/s 164 received on 29.01.2013 (v) Tariff adoption on 28.10.2011 (vi) Original COD : Mar2014

(i) Jabalpur-Bhopal 765 kV S/C line (ii) Bhopal-Indore 765 kV S/C line (iii) 2x1500 MVA 765/400 kV substation at Bhopal (iv) Bhopal-Bhopal (MPPTCL) 400 kV D/c quad line. (v) Aurangabad-Dhule 765 kV S/C line (vi) Dhule-Vadodara 765 kV S/C line (vii) 2x1500 MVA, 765/400 kV substation at Dhule (viii) Dhule - Dhule(Msetcl)400 kV D/C Line

Line commissioned in 06/2015 Line commissioned in 10/2014 Commissioned in 07/2014 Line Commissioned in 07/2014 Line commissioned in 10/2014 Line commissioned in 10/2015 Commissioned in 11/2014 Line Commissioned in 11/2014

5 Transmission System associated with DGEN TPS (1200 MW) of Torrent Power Ltd. Estimated Cost Rs. 275 Cr

PFC M/s Instalaciones Inabensa, S.A. Spain Milestones: (i) LoI issued on 19.05.2014 (ii) Approval under section 68 on 30.01.2014. (iii) Approval under Sec 164 of EA,2003 on 24.04.2016

(i) DGEN TPS – Vadodara 400 kV D/C, Twin Moose line. (ii) Navsari – Bhestan 220 kV D/C line

Project authority had not started construction activity as per execution plan. Matter was taken up with the project authority and notice served in August/Sept 2016 but project authority did not respond. Member(PS), CEA took a meeting on 26.04.2017 to review the progress of Tr. project wherein project authority informed to close the project due to financial constraints in parent company. CEA vide letter dated 14.06.2017 informed CERC to take appropriate action. Completion Target : May 2018

6 Transmission System associated with Gadarwara STPS (2x800 MW) of NTPC (Part-A)

REC Powergrid Warora Transmisson Limited (A subsidiary of PGCIL) Milestones: (i) LoI issued on 11.03.2015 (ii) Approval under section 68 on 26.11.2014 (iii) Approval under Sec 164 of EA,2003 on 24.04.2017

(i) Gadarwara STPS - Jabalpur Pool 765kV D/C line (ii) Gadarwara STPS - Warora P.S. (New) 765 kV D/C line (iii) LILO of both Ckts. Of Wardha-Parli 400 kV D/C at

Warora P.S. (2xD/C) (iv) Warora 765/400 kV Pooling Station (2x1500 MVA).

Completion Target: November, 2017

7 Transmission System associated with Gadarwara STPS (2x800 MW) of NTPC (Part-B).

REC Powergrid Parli Transmisson Limited (A subsidiary of PGCIL) Milestones:

(i) Warora P.S.- Parli (New) 765 kV D/C line (ii) Parli (New) - Solapur 765 kV D/c line (iii) Parli (New) - Parli (PG) 400 kV D/C (Quad) line (iv) 765/400 kV Parli (New) Sub-station (2x1500 MVA)

Completion Target: January, 2018

3



(i) LoI issued on 11.03.2015 (ii) Approval under section 68 on 10.12.2014 (iii) Approval under Sec 164 of EA,2003 on 28.06.2017

8 Transmission System Strengthening associated with Vindhyachal- V

REC Powergrid Jabalpur Transmisson Limited (A subsidiary of PGCIL) Milestones: (i) LoI issued on 10.02.2015 (ii) SPV has been acquired by the successful bidder on

26.02.2015 (iii) Approval u/s 164 of EA,2003 on 19.09.2016

(i) Vindhyachal P. S- Jabalpur P. S. 765 kV D/C line. Completion Target: June, 2018

9 System strengthening for IPPs in Chhattisgarh and other generation projects in Western Region

PFC Chhattisgarh - WR Transmission Ltd. (A subsidiary of Adani Power Limited) Milestones: (i) LoI issued on 28.07.2015 (ii) SPV acquisition on 23.11.2015 (iii) Approval u/s 68 of EA,2003 on 24.04.2015 (iv) Approval u/s 164 of EA,2003 on 20.10.2016

(i) Gwalior 765/400 kV – Morena 400 kV D/C line 400 kV D/C Length- 50 km

(ii) Establishment of 400/220 kV S/s at Morena, 2X315 MVA (iii) Vindhyachal-IV & V– Vindhyachal Pool 400 kV D/C

(Quad) line Length-15 km

(iv) Sasan UMPP – Vindhyachal Pooling station 765 kV S/C (Q) line 7 Length-8 km

(v) LILO of one circuit of Aurangabad – Padghe 765 kV D/C line at Pune Length-50 km

(vi) Raigarh (Kotra) – Champa (Pool) 765kV S/C (Q) line (vii) Champa (Pool) – Dharamjaygarh 765kV S/C (Q) line

Scheduled Date of Completion: March, 2019 Anticipated Date of Completion: May, 2018

10 Additional System Strengthening for Sipat STPS

PFC Sipat Transmission Ltd (A subsidiary of Adani Power Limited) Milestones: (i) SPV acquisition on 23.11.2015 (ii) LoI issued on 28.07.2015 (iii) Approval u/s 164 of EA,2003 on 05.08.2016

(i) Sipat – Bilaspur Pooling Station765 kV S/C line Length-25 km

(ii) Bilaspur PS – Rajnandgaon 765 kV D/C line Length-180 km

Scheduled Date of Completion: March, 2019 Anticipated Date of Completion: July, 2018

11 Additional System Strengthening Scheme for Chhattisgarh IPPs – Part B

PFC Raipur - Rajnandgaon - Warora Transmission Ltd (A subsidiary of Adani Power Limited)

(i) Raipur (Pool) – Rajnandgaon 765 kV D/C line Length - 60 KM

(ii) Rajnandgaon – New Pooling station near Warora 765 kV D/C line Length - 270 KM

(iii) Establishment of new 765/400 kV substation near

Scheduled Date of Completion: Nov, 2018 Anticipated Date of Completion: March, 2018

4



Milestones: (i) SPV acquisition on 23.11.2015 (ii) LoI issued on 28.07.2015 (iii) Approval u/s 164 of EA,2003 on 15.06.2016

Rajnandgaon 2x1500 MVA

12 Additional inter-Regional AC link for import into Southern Region i.e. Warora – Warangal and Chilakaluripeta - Hyderabad - Kurnool 765 kV link

PFC Warora Kurnool Transmission Ltd (A subsidiary of Essel Infraprojects Limited) Milestones: (i) LoI issued on 29.02.2016 (ii) SPV acquisition on 06.07.2016 (iii) Approval u/s 164 of EA,2003 on 27.06.2017

(i) Establishment of 765/400 kV S/s at Warangal (New) with 2x1500 MVA ICTs and 2x240 MVAR bus reactors

(ii) Warora Pool – Warangal (New) 765kV D/c line with 240 MVAR switchable line reactor at both ends Length - 350 KM

(iii) Warangal (New) – Hyderabad 765 kV D/c line with 330 MVAR switchable line reactor at Warangal end Length- 160 KM

(iv) Warangal (New) – Warangal (existing) 400 kV (quad) D/c line Length-10 KM

(v) Hyderabad – Kurnool 765 kV D/c line with 240 MVAR switchable line reactor at Kurnool end Length- 170 KM

(vi) Warangal (New) – Chilakaluripeta 765kV D/c line with 240 MVAR switchable line reactor at both ends Length – 250 KM

(vii) Cuddapah – Hoodi 400kV (quad) D/c line with 63 MVAR switchable line reactor at both ends Length-200 KM

Scheduled Date of Completion : Nov, 2019

13 Common Transmission System for Phase-II Generation Projects in Odisha and Immediate Evacuation System for OPGC (1320 MW) Project in Odisha

PFC Orissa Generation Phase-II Transmission Limited (A subsidiary of Sterlite Grid Limited) Milestones: (i) LoI issued on 06.01.2016 (ii) SPV acquisition on 08.04.2016 (iii) Approval u/s 164 of EA,2003 on 07.03.2017

(i) OPGC (IB TPS) – Jharsuguda (Sundargarh) 400 kV D/C line with Triple Snowbird Conductor Length - 50 KM

(ii) Jharsuguda (Sundargarh) – Raipur Pool 765 kV D/C line Length - 350 KM

Scheduled Date of Completion: August, 2019

14. Transmission System Strengthening in WR associated with Khargone TPP (1320 MW)

REC Khargone Transmission Limited (Sterlite Grid Ltd.) Milestones: (i) LoI issued on 26.05.2016 (ii) SPV acquisition on 22.08.2016 (iii) Approval u/s 164 of EA,2003 on 05.07.2017

A. Connectivity system for Khargone TPP (i) LILO of one ckt of Rajgarh - Khandwa 400 kV D/C line

at Khargone TPP (ii) Khargone TPP Switchyard – Khandwa pool 400 kV D/C

(Quad) line B. System strengthening in WR in time frame of

Khargone TPP (i) Khandwa Pool – Indore 765 kV D/C line.

Scheduled Date of Completion: July, 2019 Anticipated Date of Completion: Feb, 2018

5



(ii) Khandwa Pool – Dhule 765 kV D/C line. (iii) Establishment of 765/400 kV, 2x1500 MVA pooling

station at Khandwa pool

15. New WR- NR 765 kV Inter-regional corridor

REC Milestones: (i) MoP vide Gazette Notification dated 28.10.2016

appointed RECTPCL as BPC (ii) Request for Qualification : 28.12.2016 (iii) Request for Proposal : 28.03.2017

(i) Vindhyanchal Pooling Station- Varanasi 765 kV D/C line Yet to get Awarded

16. A. Additional 400kV feed to Goa B. Additional System for Power

Evacuation from Generation projects pooled at Raigarh (Tamnar) Pool

PFC Milestones: (i) MoP vide Gazette Notification dated 28.10.2016

appointed PFCCL as BPC (ii) Request for Qualification : 01.02.2017 (iii) Request for Proposal : 01.05.2017

A. Additional 400kV feed to Goa (i) LILO of one ckt. of Narendra (existing) – Narendra

(New) 400 kV D/c quad line at Xeldem (ii) Xeldem – Mapusa 400 kV D/c (Q) line (iii) Establishment of 2x500MVA, 400/220kV substation at

Xeldem B. Additional System for Power Evacuation from

Generation Projects pooled at Raigarh (Tamnar) Pool

(i) Dharamjaygarh Pool section B - Raigarh (Tamnar) Pool 765 kV D/c line

Yet to get Awarded

17. A. Connectivity System for Lanco Vidarbha Thermal Power Ltd. (LVTPL)

B. Inter State Transmission system

strengthening in Chhatarpur area in Madhya Pradesh

PFC Milestones: (i) MoP vide Gazette Notification dated 28.10.2016

appointed PFCCL as BPC

A. Connectivity System for Lanco Vidarbha Thermal Power Ltd. (LVTPL)

(i) LVTPL TPS switchyard – Warora Pool 765kV D/c line B. Inter State Transmission system strengthening in

Chhatarpur area in Madhya Pradesh (i) LILO of both circuits of Satna – Bina 400kV (1st) D/c line

at Bijawar. (ii) Establishment of 2x500MVA, 400/220kV substation at

Bijawar

Bidding process is kept in abeyance

Annexure 2.2

Sl.

No.Description of Scheme

Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval

Target date as of now Remarks

1Western Region System Strengthening Scheme -

II5222

20th

(23.01.04)July’06

Set-A: For absorbing import in eastern and central

part of WR Grid (POWERGRID)1700 Commissioned

Set-B: For regional strengthening in Southern

Maharashtra (100 % private)1050 Commissioned

Set-C: For regional strengthening in Gujarat (100 %

private)600 --- Implementation by Reliance

a) Rajgarh – Karamsad 400kV D/c commissioned

b) Limdi(Chorania) – Ranchodpura 400kV D/c commissioned

c) Ranchodpura – Zerda(Kansari) 400kV D/c commissioned

Set-D: For regional Strengthening in Northern

Madhya Pradesh (POWERGRID)1050 commissioned

2 Western Region System Strengthening -V 72225

th

(30.09.06)Dec’07 Under implementation

a) 400 kV Vapi- Kala - Kudus D/c Dec'17

Vapi-Kala portion

commissioned in Mar'14.

Kudus S/s being implemente by

MSETCL.

b) LILO of 400 kV Lonikhand - Kalwa line at Navi

MumbaiDec'17

Cable work in progress (2km.)

Critical ROW issues

c) Establishment of 400/220 kV, 2 x 315 MVA

new S/s (GIS) at Navi Mumbai

Substation is ready and

shall be commissioned

matching with line

d) 220 kV Vapi- Khadoli D/c. Commissioned

3Tr. System of Mundra Ultra Mega Power Project

(4000 MW) 4824

26th

(23.02.07)Oct’08 Under implementation

a) Mundra – Bachchau -Ranchodpura 400 kV

(Triple) D/cCommissioned

b) Mundra – Jetpur 400 kV (Triple) D/c Commissioned

c) Mundra – Limbdi 400 kV (Triple) D/c Commissioned

d) Gandhar-Navsari 400 kV D/c Commissioned

e) Navsari - Boisar 400 kV D/c Commissioned Severe ROW & Forest issue.

f) LILO of both circuits of Kawas-Navsari 220 kV

D/c at Navsari (PG)Commissioned

g) Wardha-Aurangabad 400 kV(Quad) D/c (with

provision to upgrade at 1200 kV at later date)Feb'18

Both Contracts terminated due

to unsatisfactory performance.

Tender awarded for both the

packages.

g) Aurangabad (PG) -Aurangabad I (Waluj) 400

kV(Quad) Commissioned

Substations

a) 40% Fixed Series Compensation each on

Wardha - Aurangabad 400 kV D/c at Wardha endFeb'18

Commissioning matching with

the line

b) Establishment of new 400/220 kV, 2x315

MVA substation at Navsari & BachchauCommissioned

c) Establishment of new 765/400 kV, 3x1500

MVA, substation at Wardha for charging of Seoni -

Wardha 2xS/c lines at 765 kV level

Commissioned

4

Transmission system associated with

Krishnapatnam (5x800 MW) (WR Portion)- now

delinked from Krishnapatnam UMPP

192827

th

(30.07.07)Under implementation

a) Raichur – Solapur (PG) 765 kV S/c Commissioned

b) Solapur(PG) – Pune 765 kV S/c Commissioned

c) LILO of 400kV Aurangabad I (Waluj) - Pune (PG)

D/c & Parli (PG) - Pune (PG) D/c lines at Pune(GIS) Commissioned

d) Establishment of new 765/400 kV substations at

Pune (GIS) with 2x1500 MVA transformation

capacity

Commissioned

5Associated transmission system of VSTPP-IV and

Rihand-III4673

29th

(10.09.09)Mar’10 Under implementation

a) Rihand III- Vindhyachal Pool 765 kV D/c (initially

to be op. at 400kV)Commissioned

b) Vindhyachal IV - Vindhyachal Pool 400kV

D/c(Quad)Commissioned

c) Vindhyachal Pool - Satna 765 kV 2xS/c Commissioned

d) Satna -Gwalior 765 kV 2xS/c Commissioned

e) Gwalior – Jaipur(South) 765 kV S/c Commissioned

f) Vindhyachal Pool-Sasan 765 kV S/c Commissioned

STATUS OF TRANSMISSION SCHEMES UNDER IMPLEMENTATION BY POWERGRID IN WESTERN REGION (as on 31.08.2017)

Sl.


Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval



g) Vindhyachal Pool-Sasan 400 kV D/c Commissioned

h) Establishment of 765/400kV, 2x1500 MVA

substation at Vindhyachal PoolCommissioned

6 Solapur STPP(2x660MW) transmission system 63.3230th

(08.07.10)Oct'13 Under implementation

a) Solapur STPP – Solapur (PG) 400kV D/c (Quad) Commissioned Line completed in Apr'15

b) Augmentation of 400/220kV ICT by 1x500MVA

transformer (3rd

) at Solapur (PG)Commissioned

7Solapur STPP (2x660MW) transmission system

(Part-A)50.52

36th

(29.08.13)Mar'15 Award placed in May'15

a) Solapur STPP – Solapur (PG) 400kV 2nd D/c

(Quad)Sep'17 Expected by end of Sep'17

8Transmission system for evacuation of Kakrapar

Atomic Power Project unit 3 &4 (2x700 MW)378.71

31st

(27.12.10)Feb'14 Under Implementation

a) Kakrapar NPP – Navsari 400kV D/c – 38 km CommissionedStringing commenced from

Mar'16

b) Kakrapar NPP – Vapi 400kV D/c - 104 km Commissioned

9Transmission System associated with Mauda

Stage-II (2x660 MW)1575.3

32nd

(13.05.11) Sep'13 Under Implementation

a) Mauda II – Betul 400KV D/c (Quad)-210 km Commissioned

b) Betul– Khandwa 400KV D/c (Quad)-180 km Commissioned

c) Khandwa – Indore(PG) 400kV D/c -215 km Commissioned

d) Establishment of 400/220kV 2x315MVA

substation at Betul Commissioned

10

Provision of 1x315MVA ICT & Spare Converter Trf

for reliable auxlliary power supply at HVDC back

to back station at Bhadravati

14333

rd

(21.10.11) - Commissioned

ICT commissioned in Mar'15.

Balance work under progress.

11

Establishment of Pooling Station at Champa and

Raigarh (Near Tamnar) for IPP Generation

Projects in Chhattisagrh

2066.8529th

(10.09.09) May'11 Under Implementation

a) Champa Pooling Station - Raipur Pooling Station

765kV D/cCommissioned

b) Raigarh Pooling Staiton (near Kotra) - Raigarh

pooling (near Tamnar) 765kV D/cCommissioned

c) Champa Pooling Station - Dharamjaygarh

Pooling Station 765kv S/cCommissioned

d)Raigarh Pooling Staiton (near Kotra) - Champa

pooling 765kV S/cCommissioned

e) Establishment of 765/400kV 6x1500MVA

Champa Pooling StationCommissioned

f)Establishment of 765/400kV 3x1500MVA Raigarh

Pooling Station (near Tamnar)Commissioned

12

Transmission system strengthening in Western

Part of WR for IPP generation proejcts in

Chhattisgarh

2127.5129th

(10.09.09) Nov'11 Under Implemetation

a) Aurangabad(PG) – Boisar 400kV D/c (Quad) Sep'17 Expected by end of Sep'17

b) Wardha - Aurangabad (PG) 765kV D/c Commissioned

c) Establishement of 765/400kv 2x1500MVA

auraganbad (PG) S/sCommissioned

d) Augmentation of transformation capacity at

Boisar by 400/220kV, 1x500MVACommissioned

13System strengthening in North/West part of WR

for IPP Projects in Chhattisgarh2073.26

29th

(10.09.09) Dec'11 Under Implementation

a) Aurangabad (PG) – Padghe(PG) 765kV D/c Dec'17

b) Vadodara – Asoj 400kV D/c(Quad) Commisisoned

c) Padghe – Kudus 400kV D/c (Quad) Dec'17

14System Strengthening in Raipur-Wardha Corridor

for IPP projects in Chhattisgarh (DPR-6)1422.85

29th

(10.09.09) Jan'12 Under Implementation

a) Raipur Pooling station - Wardha 765kV 2nd D/c Commisisoned

15WR-NR HVDC interconnector for IPP Projects in

Chhattisgarh9569.76

29th

(10.09.09)/30

th (08.07.10)

Mar'12 Under Implementation

a) A + 800kV, 3000Mw HVDC bipole between

Champa Pooling Station-Kurukshetra (NR)

(provision to upgrade to 6000MW at a latter date)

Commissioned

b) Kurukshetra(NR) - Jallandhar 400kV D/c(Quad)

one ckt. via 400/220kV Nakodar Commissioned

c) LILO of Abdullapur – Sonepat 400kV D/c(triple)

at KurukshetraCommissioned

Sl.


Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval



d) Establishment of 3000MW 800KV HVDC bipole

terminal each at Champa Pooling station and

Kurukshetra(NR) respectively: to be upgraded to

6000MW.

Commissioned

e) Establishment of 400/220kV 2x500 MVA S/s at

Kurukshetra (GIS) 2x500MVACommissioned

400kV bays ready for

commissioning in Dec'15. ICT-II

16Inter-regional system strengthening scheme for

WR and NR-Part A1315.9

36th

(29.08.13) Oct'13 Completed

a) Solapur - Aurangabad 765kV D/c Commissioned

17Transmission System Associated with Lara STPS-I

(2x800MW)400.47

17th

LTA

(03.01.13) Jun'14 Under Implementation

a) Lara STPS-I – Raigarh (Kotra) Pooling Station 400

kV D/c line – 18kmCommissioned

b) Lara STPS-I – Champa Pooling Station 400 kV

D/c (quad) line.-112kmCommissioned

Tower erection commenced in

Oct'15

18Transmission System Strengthening in WR-NR

Transmission Corridor for IPPs in Chattisgarh5151.37

35th

(03.01.13) Jun'14 Under Implementation

a) Up-gradation of + 800kV, 3000MW HVDC bipole

between Champa Pooling Station – Kurukshetra

(NR) to 6000MW

Pole-III: Jun'18; Pole-IV:

Dec'18Tentative

b) Kurukshetra (NR) – Jind 400kV D/c (Quad) Oct'17

19Inter-regional system strengthening scheme for

WR and NR-Part B6517.36 Dec'14 Under Implementation

(a) 765KV D/C Jabalpur Pooling Station - Orai line Mar'18

(b) 765KV D/C Orai - Aligarh line Mar'18

(c) 400KV D/C Orai - Orai line (Q) Mar'18

(d) LILO of one ckt of Satna-Gwalior 765KV 2x S/C

line at OraiMar'18

(e) LILO of Agra - Meerut 765KV S/C at Aligarh Mar'18

(f) LILO of Kanpur - Jhatikara 765KV S/C at Aligarh Mar'18

20 Wardha - Hyderabad 765kV Links 3662.02 Jan'15

(a) 765KV D/C Wardha - Hyderabad line Commissioned

(b) 400KV D/C Nizamabad - Dichpali line Commissioned

21 GREEN ENERGY CORRIDORS:- Inter State

Transmission Scheme (ISTS) - Part B

3705.61

36 / 37th

(29.08.13/05.

09.14)

Apr'15 Under Implementation

(a) 765KV D/C Banaskanta - Chittorgarh (New) line Apr'18

(b) 765KV D/C Chittorgarh (New) - Ajmer (New)

line Apr'18

(c) 400KV D/C Banaskanta - Sankhari line Apr'18

(d) Establishment of 765/400/220kV (765/400kV -

2x1500 MVA & 400/220kV - 2x500MVA)

substation at Banaskanta

Apr'18

22 GREEN ENERGY CORRIDORS:- Inter State

Transmission Scheme (ISTS) - Part C

2247.37

36 / 37th

(29.08.13/05.

09.14)

July'15 Under Implementation

(a) 765KV D/C Bhuj Pool - Banaskanta line July'18

(d) Establishment of 765/400/220kV (765/400kV -

2x1500 MVA & 400/220kV - 2x500MVA) pooling

station at Bhuj

July'18

23Transmission System Strengthening Associated

with Vindhyachal V - Part A

34th

(09.05.12)Feb'15

(a) 1x1500MVA, 765/400kV ICT at Vindhyachal

Pooling StationCommissioned

24Transmission System Strengthening Associated

with Vindhyachal V - Part B

34th

(09.05.12)Under Implementation

(a) 2 nos of 765kV Line bays alongwith 2x330MVAR

Line Reactor at Vindhyachal Pooling Station

Jun'18

(a) 2 nos of 765kV Line bays alongwith 2x330MVAR

Line Reactor at Jabalpur Pooling Station

Jun'18

25 STATCOMs in Western Region36th

(29.08.13)Mar'15

(a) Aurangabad Sep'17

(b) Gwalior Apr'18

(c) Solapur Sep'17

(d) Satna Sep'17

26Western Region System Strengthening Scheme

XIV93.96

37th

(05.09.14)Jan'16

Efforts being made to

commission earlier

Sl.


Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval



(a)2x500MVA, 400/220kV transformer alongwith

six nos of 220kV bays at Indore (PG) 765/400kV

Substation

July'18

(b)1x500MVA, 400/220kV transformer alongwith

two nos of 220kV bays at Itarsi (PG) 400/220kV S/sCommissioned

27

Powergrid works associated with Part-A of

Transmission system for Gadarwara STPS of

NTPC

36/37th

(29.08.13 /

05.09.14)

Apr'16

(a) 2 nos. 765 kV line bays at 765/400kV Jabalpur

Pooling Station of POWERGRID for Gadarwara

STPS (NTPC) - Jabalpur PS 765 kV D/c

Commissioned in

May'17

28

Powergrid works associated with Part-B of

Transmission system for Gadarwara STPS of

NTPC i.e. WRSS XV

36/37th

(29.08.13 /

05.09.14)

Apr'16Matching with TBCB

schedule

(a) 2 nos. 765 kV line bays at 765/400kV Solapur

sub-station of POWERGRID for Parli New (TBCB) -

Solapur (PG) 765 kV D/c

Jan'18

(b) 2 nos 400kV line bays at existing 400kV Parli

(PG) Switching Station of POWERGRID for Parli

New (TBCB) - Parli (PG) 400kV D/c (quad)

Feb'18

29

Powergrid works associated with System

Strengthening for IPPs in Chhattisgarh and other

generation projects in Western Region

36th

(29.08.13) Jul'16

Matching with TBCB

schedule

(a) 1 no. 765 kV line bay at 765/400kV Vindhyachal

Pooling Station of POWERGRID for Sasan UMPP -

Vindhyachal PS (PG) 765 kV 2nd S/c

Nov'18

(b) 2 no. 400 kV line bays at 765/400kV

Vindhyachal Pooling Station of POWERGRID for

Vindhaychal (IV/V) STPP switchyard (NTPC) -

Vindhyachal PS (PG) 400 kV 2nd D/c (quad)

Jan'19

(c) 2 no. 400 kV line bays at Gwalior Substation

for Gwalior - Morena 400 kV D/c (quad)May'18

(d) 2 nos. 765 kV line bays at 765/400kV Pune (GIS)

sub-station of POWERGRID for LILO of one circuit

of Aurangabad(PG) – Padghe(PG)765 kV D/c at

Pune (GIS) (PG)

Mar'19

(e) 2 nos. 765 kV line bays at 765/400kV Champa

Pooling Station of POWERGRID 1for Champa

PS(PG) - Raigarh (Kotra) PS(PG) 765 kV 2nd S/c, 1

for Champa PS(PG) – Dharamjaigarh(PG) 765 kV

2nd S/c

Nov'18

(f) 1 no. 765 kV line bay at 765/400kV Raigarh

(Kotra) Pooling Station of POWERGRID for

Champa PS(PG) - Raigarh (Kotra) PS(PG) 765 kV

2nd S/c

Nov'18

(g) 1 no. 765 kV line bay at 765/400kV

Dharamjaigarh Pooling Station of POWERGRID for

Champa PS(PG) – Dharamjaigarh(PG)765 kV 2nd

S/c

Nov'18

30

Powergrid works associated with Additional

System Strengthening Scheme Chhattisagrh IPPs

Part-B

36/37th

(29.08.13 /

05.09.14)

Jul'16Matching with TBCB

schedule

(a) 2 nos. 765 kV line bay at 765/400kV Raipur

Pooling Station of POWERGRID for Raipur PS(PG)

– Rajnandgaon (TBCB) 765 kV D/c

Nov'18

30 Powergrid workds associated with Additional

System Strengthening for Sipat STPS

36/37th

(29.08.13 /

05.09.14)

Jul'16Matching with TBCB

schedule

(a) 3 nos. 765 kV line bays at 765/400kV Bilaspur

Pooling Station of POWERGRID (1 no. for Sipat

STPS(NTPC) - Bilapur PS(PG) 3rd 765kV S/c, 2 nos.

for Bilaspur PS(PG)-Rajnandgaon(TBCB) 765 kV

D/c)

Nov'18-Mar'19

(b) 2 nos. 240 MVAR, 765 kV switchable line

reactors at 765/400kV Bilaspur PS end for

Bilaspur PS(PG) - Rajnandgaon(TBCB) 765 kV D/c

Mar'19

31Transmission System Strengthening associated

with Mundra UMPP- Part A266.19

36th

(29.08.13)Jul'16

(a) LILO of both circuits of Mundra UMPP-Limbdi

400kV D/c (triple snowbird) line at Bachau

Dec'17

Sl.


Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval



32 Transmission System Strengthening associated

with Mundra UMPP- Part B

36/38th

(29.08.13/17.

07.2015)

Dec'18

(a) Mundra UMPP - Bhuj Pool 400kV D/c line

(triple snowbird)

33 Bays for Transmission System Associated with

DGEN Torrent Energy Ltd (1200MW)

13/14th LTA

(27.12.10/13.

05.2011)

Jul'16Execution of TBCB scheme

critical

(a) 2nos 400kV Bays at Vadodara (GIS) May'18

(b) 2nos 220kV Bays at Navsari (GIS) May'18

34Western Region System Strengthening -16

38th

(17.07.15)Jul'16 July'18

(a) Installation of 2x500MVA, 400/220kV ICTs with

associated bays at Parli (PG) switching station

along with provision of six nos. of 220 kV bays

(b) Provision of two nos. of 220kV bays at Mapusa

(Colvale) 400/220 kV substation

(c) Installation of 500MVA, 400/220kV (3rd) ICT

with associated bays at Satna (PG) S/s with

provision of two nos. 220kV line bays

(d) Provision of two nos. of 400 kV bays at

765/400kV Indore(PG) substation


39th

(30.11.15)Feb'17 Sep'19

1. Provision of 1x240 MVAR switchable line reactor

at Pune GIS S/s end for Aurangabad (PG) – Pune

GIS 765kV S/C line, formed after LILO of one ckt of

Aurangabad (PG) – Padghe (PG) 765kV D/C line at

Pune GIS.

2. Conversion of followings Fixed Line Reactor into

Switchable Line Reactors / BUS Reactor. a. Itarsi – Indore (MPPTCL) 400kV 2xS/C lines:

420kV 50 MVAR fixed line reactors at both ends of

each line are to be converted into switchable line

reactors.

b. Bina (PG) – Shujalpur 400kV D/C line: 420kV 50

MVAR fixed line reactor at Shujalpur end is to be

converted into switchable line reactor. The 420kV

63 MVAR line reactor installed at Bina (PG) end is

already switchable.

c. 1x63 MVAR BUS Reactor at Bhadravati S/s:

420kV

3. Installation of ICTs along with associated bays at

following substations of POWERGRID:

a. Khandwa 400/220kV Substation: 1x500 MVA,

400/220kV 3rd ICT.

b. Boisar 400/220kV Substation: 1x500 MVA,

400/220kV 4th ICT.

c. Kala 400/220kV Substation: 1x500 MVA,

400/220kV 3rd ICT.

d. Dehgam 400/220kV Substation: 1x500 MVA,

400/220kV 3rd ICT.


39th

(30.11.15)Feb'17 Feb'20

1. Splitting of following substation along with

necessary switching arrangement.

a. Dharamjaygarh Pool 765kV BUS

b. Raigarh Pool (Kotra) 400kV & 765kV BUS

c. Champa Pool 400 kV & 765kV BUS

2. Installation of Reactors:

a. 1X125 MVAR BUS Reactor at 400kV BUS Section

A of Dharamjaygarh Pool.

b. 1X125 MVAR BUS Reactor at 400kV BUS Section

A of Raigarh Pool (Kotra).

c. 1X240 MVAR BUS Reactor at 765kV BUS Section

A of Raigarh Pool (Kotra).

d. 1X240 MVAR BUS Reactor at 765kV BUS Section

A of Champa Pool.

e. 1X330 MVAR BUS Reactor at 765kV BUS Section

B of Dharamjaygarh Pool.

37 PG Works associated with Transmission System

for Khargone TPP

38th & 39th

(17.07.15 &

30.11.15)

Feb'17

Sl.


Estimated

Cost (Rs.

Cr)

Date of

firming up in

WR standing

committee

Date of

investment

approval



1. 63 MVAr switchable line reactor along with

500Ω NGR at Rajgarh(PG) end of Khargone TPS –

Rajgarh (PG) 400kV line formed after LILO of one

circuit of Khandwa - Rajgarh 400 kV D/C line at

Khargone TPS, being implemented under TBCB

Feb'18

2. 2 nos. of 765 kV line bays at 765/400kV

Indore Substation of POWERGRID for termination

of Khandwa PS – Indore 765 kV D/C line, being

implemented under TBCB

July'19

3. 240 MVAr Switchable Line Reactors along

with 700Ω NGR at Indore (765/400kV S/s) end of

each circuit of Khandwa Pool – Indore 765kV D/c

line (Line being implemented under TBCB)

July'19

38POWERGRID Works associated with New WR -

NR 765kV Inter-regional corridor

40th

(01.06.2016)

Matching with TBCB

Line

a. 2 nos. of 765kV Line Bays at Vindhyachal

765/400 kV Pooling Station;

b. 2 nos. of 765kV Line Bays along with 765kV,

1x330 MVAr line reactor in each bay at Varanasi

765/400 kV GIS sub-station

39POWERGRID Works associated with Additional

400kV feed to Goa

40th

(01.06.2016)

41st

(21.12.2016)

Matching with TBCB

works

2 nos of 400kV line bays at Mapusa s/s for

termination of Xeldem – Mapusa 400kV D/c (quad)

line & 1x80MVAr LR at Narendra (New) S/s for

Narendra(New) - Xeldam 400kV line

40POWERGRID Works associated with Additional

System for Power Evacuation from Generation

Projects pooled at Raigarh (Tamnar) Pool

40th

(01.06.2016)

Matching with TBCB

works

2 nos. of 765kV Line Bays each at Dharamjaygarh

Pool and Raigarh (Tamnar) Pool

41 Transmission system for Ultra Mega Solar Power

Park (700MW) at Banaskantha (Radhanesda),

Gujarat

118

40th

(01.06.2016)

May'17

Matching with

Banaskantha

(Radhanesda) Solar Park

(expected by Jun'19)

400KV D/C Banaskantha PS - Banaskantha (PG) line

765/400kV Banasktantha (PG) 2 nos line bays

42Supplementary Transmission system for Ultra

Mega Solar Power Park (700MW) at Banaskantha

(Radhanesda), Gujarat

41st

(21.12.2016)

Matching with

Transmission system for

Ultra Mega Solar Power

Park (700MW) at

Banaskantha

(Radhanesda) GujaratEstablishment of 2x500MVA, 400/220kV pooling

station at Banaskantha (Radhanesda) [GIS] along

with 1x125MVAr bus reactor

4 nos. 220kV line bays at 400/220kV at

Banaskantha (Radhanesda) pooling station for

Solar Park Interconnection.

43 Transmission System for Ultra mega Solar Park in

Rewa District, Madhya Pradesh .

38th

(17.07.2015)

Jan'16 /

Mar'17

Matching with Rewa

UMSPP (expected by

Oct'17)

Establishment of 3x500MVA, 400/220kV

substation at Rewa Pooling Station

LILO of Vindhyachal - Jabalpur 40kV D/c (both

circuits) at Rewa Pooling Station

6 nos. 220kV line bays at Rewa Pooling Station

Annexure - 3.1

S. No. Elements Developer SCOD as

per TSA

Indicated Early date of commissioning

Mutually agreed date of

Early Commissioning

Remarks

1 Sipat Transmission Ltd. (STL) - Additional System Strengthening for Sipat STPS

a765 kV S/C Sipat -Bilaspur Pooling Station

STL Nov’ 18 Dec’17

June’ 18

Early commissioning of this transmission line would improve the reliability of evacuation system of Sipat STPS.

i1 no. 765 kV line bay at Sipat STPP of NTPC

STL Nov’18 May’17

ii 1no. of 765 kV line bay at Bilaspur PS PGCIL Nov’18* June’18

b765 kV D/C Bilaspur Pooling Station -Rajnandgaon

STL Mar’ 19 July 18Nov’18

The system beyond Rajnandgaon (i.e, Rajnandgaon-Warora-Parli) is under implementation by different TSPs (RRWTL, PWTL, and PPTL).

i 2 no. of Bays at Bilaspur PS PGCIL Mar’19* Nov’18

ii2 no. of 765 kV bay at Rajnandgaon SS(Switching)

RRWTL Nov’ 18 Nov’17 Nov’18(SCOD)

2 Raipur - Rajnandgaon Warora Transmission Ltd. (RRWTL) - Additional System Strengthening Scheme for Chhattisgarh IPPs – Part B

a 765 kV D/C Raipur Pool - Rajnandgaon RRWTL Nov’18 May’17

Nov’18 (SCOD)

System Strengthening Scheme for Chhattisgarh IPPs, no requirement of early commissioning. This scheme is interlinked with transmission system being implemented by M/s PWTL (Nov’17) & PPTL (January 18). The line reactors of the Rajnandgaon- Warora 765 kV D/C line at Warora substation are in the scope of M/s WKPL (Nov’19 with SCOD of reactors as Nov 18).

i 2 no. of 765 kV Baysat Raipur PS PGCIL Nov’18* -

ii2 no. of 765 kV bays at Rajnandgaon SS(Switching)

RRWTL Nov’18 Nov’17

b

765 kV D/C Rajnandgaon - New Pooling Station near Warora

RRWTL Nov’18 June’18Nov’18 (SCOD)

i2 no. of 765 kV bays at Rajnandgaon SS(Switching)

RRWTL Nov’18 Nov’17

ii2 no. of 765 kV bays at New Warora Pooling Station

Powergrid Warora

Transmission Ltd

Nov’17 Nov’17 Nov’17 (SCOD)

iii2X240 MVAR line reactors at Warora end

WKTL Nov’18 - Nov’18 ( SCOD)

c

Establishment of new 765kV switching station near Rajnandgaon

RRWTL Nov’18 Nov’17 Nov’18 (SCOD)

3 Chhattisgarh WR Transmission Limited (CWRTL) - System Strengthening for IPPs in Chhattisgarh & Other Generation Projects in Western Region

a400 kV D/C Gwalior -Morena CWRTL May’18 Jan’18

Jan’18

This line is planned to establish an interconnection between Gwalior (PG) & Morena (MPPTCL). MPPTCL agreed to implement their 220 kV outlets from Morena 400/220 kV SS by January 2018

i 2 no. of 400 kV bays at Gwalior (PG) PGCIL May’18* Jan’18

ii 2 no. of 400 kV bays at Morena (TBCB) CWRTL May’18 Jan’18

iii 4 no. of 220 kV outlets from Morena (TBCB) MPPTCL May’18 Jan’18

b

400 kV D/C Vindhyachal IV & V STPP - Vindhyachal Pool

CWRTL Jan’19 Jan’18

Jan’18

To improve reliability of power evacuation of Vindhyachal stage IV & V.

i2 no. of 400 kV Baysat Vindhyachal STPP of NTPC

CWRTL Jan’19 Jan’18

ii 2 no. of Bays at Vindhyachal Pool PGCIL Jan’19* Jan’18

c765 kV S/C Sasan UMPP - Vindhyachal Pooling Station

CWRTL Nov’18 Dec’17

Jun’18To improve the reliability of power evacuation of Sasan UMPP

i1 no. of 765 kV Bay at Sasan UMPP of M/s. SPL, Reliance

CWRTL Nov’18 Dec’17

ii 1 no. of 765 kV Bay at Vindhyachal Pool PGCIL Nov’18* Jun’18

d

LILO of one circuit of Aurangabad - Padghe 765 kV D/C line at Pune

CWRTL Mar’19 Jul’18Jul’18 System strengthening line

i 2 no. of 765 kV bays at Pune PGCIL Mar’19* Jul’18

e765 kV S/C Raigarh (Kotra) - Champa (Pool)

CWRTL Nov’18 Mar’18

Jun’18

To improve reliability in Chattishgarh generation complex( Raigarh kotra, Raigarh Tamna, Champa)

i 1 no. of 765 kV bay at Raigarh (Kotra) PGCIL Nov’18* Jun’18

ii 1 no. of 765 kV bay at Champa (Pool) PGCIL Nov’18* June’18

f765 kV S/C Champa (Pool) -Dharamjaigarh

CWRTL Nov’18 Apr’18

Jun’18

To improve reliability in Chattishgarh generation complex( Raigarh kotra, Raigarh Tamna, Champa)

i 1 no. of 765 kV bay at Champa PS PGCIL Nov’18* Jun’18

ii 1 no. of 765 kV bay at Dharamjaygarh PGCIL Nov’18* Jun’18

*Bays in matching time frame of the associated line.

Annexure - 7.1

Gist of the discussions of the meeting held on 25-04-2017 at Xeldem 220 kV sub-station of Goa Electricity Department (GED) to finalize interconnection of proposed New Xeldem 400/220 kV sub-station at 220 kV level

1.0 List of participants is enclosed at Annexure-I.

2.0 A meeting was held under the chairmanship of Chief Engineer (PSPA-I), CEA on 25-

04-2017 at Xeldem 220 kV sub-station of GED to discuss location of New Xeldem

400/220kV sub-station being implemented through tariff based competitive

bidding (TBCB) and modalities of its interconnection with existing Xeldem 220 kV

sub-station of GED.

3.0 It was informed that at the proposed New Xeldem 2x500 MVA 400/220 kV sub-

station is an AIS sub-station. Keeping in view the provision for expansion by 2x500

MVA transformer, the land required for the new sub-station would be about 40

acre. Further, the switching scheme at 220 kV level at new sub-station would be

double main and transfer bus scheme with bus bar rating of 3000A.

4.0 GED informed that the switching scheme at existing Xeldem sub-station is double

main bus scheme and the bus bar rating is of 2000A.

5.0 As adequate land contiguous to the existing Xeldem sub-station was not available

and also keeping in view the different 220 kV switching scheme at proposed New

Xeldem S/S and existing Xeldem sub-station, it was decided that interconnection

between the two sub-stations would be through 220 kV HTLS D/C line. The

interconnection line has already been covered under the scope of TBCB. The two

no. of 220 kV line bays of adequate rating required for the interconnection at

Xeldem existing sub-station would be provided by GED.

6.0 The surveyor appointed by Bid Process Coordinator (BPC) i.e. PFCCL informed that

they have identified 3 locations for establishment of New Xeldem sub-station,

which are in the vicinity of existing 220 kV Xeldem sub-station of GED. It was

decided that the surveyor would collect landowner ship details at these locations

and furnish the same to GED, PFCCL, CTU and CEA. After interaction with local

administration and landowners, GED will inform CEA, CTU and BPC the location,

which is more suitable for establishment of the new sub-station from land

acquisition and line termination point of view.

7.0 After further discussions, it was decided that following 220kV interconnections

would be established for drawl of power from New Xeldem 400/220 kV sub-

station:

New Xeldem (400 kV) - Xeldem (GED) 220kV D/c line with HTLS conductorequivalent to twin moose conductor: (220 kV line under TBCB Scope, 2 nos.220kV line bays at Xeldem (GED) to be constructed by GED)

New Xeldem (400 kV)-Verna (GED) 220kV D/c line : 220 kV line and 2 nos.220kV line bays at Verna (GED) to be constructed by GED

LILO of 2nd circuit of Ambewadi-Ponda 220 kV D/C line at New Xeldem (400kV)

Annexure-I

List of the participants of the meeting chaired by Chief Engineer (PSPA-I), CEA held on 25-

04-2017 at Xeldem 220 kV sub-station of Goa Electricity Department (GED) to finalize

interconnection of proposed New Xeldem 400/220 kV sub-station at 220 kV level

S.

No.

Name Designation & organization

1. Sh. Ravinder Gupta CE (PSPA-I), CEA, New Delhi

2. Sh. Subir Mulchandani CEO, PFCCL, New Delhi

3. Sh. Yogesh Juneja GM, PFCCL, New Delhi

4. Sh. Ramchandra DGM, CTU-Planning, POWERGRID, Gurgaon.

9910378128

5 Sh. Laxmikant Kolveker CEE Goa

6. Ms. Reshma Mathew Suptd. Engineer Elect. Dept., Panji, Goa

7 Sh. Devadasan A Executive Engineer Div.XII Xeldem

8 Sh. Jose E. De Melo Executive Engineer, EHV

Annexure - 7.2

Annexure - 8.1

Minutes of the meeting held on 28.06.2017 at CEA, New Delhi to discuss the extension of LILO arrangement for evacuation of power of M/s EPMPL (ESSAR Power MP Ltd.) Power Project (2x600 MW) at Mahan in Madhya

Pradesh

1. A meeting was held under the Chairmanship of Member (Power System), CEA on 28.06.2017 at CEA, New Delhi to discuss the extension of LILO arrangement for evacuation of power of M/s EPMPL Power Project (2x600 MW) at Mahan in Madhya Pradesh. List of participants is enclosed at Annexure-I.

2. CEA stated that M/s EPMPL is establishing 1200 (2x600) MW TPS in Madhya Pradesh. First unit of 600 MW is under operation and the second unit is expected to be commissioned by July, 2017. The following transmission system for Mahan TPS was agreed in the 27th meeting of Standing Committee on Power System Planning of Western Region (SCPSPWR) / 9th meeting of WR constituents on LTOA held on 30.07.2007 to be implemented by generation developer:

i. Mahan STPS-Sipat (Bilaspur Pooling Station) 400 kV D/C (triple moose conductor) line

ii. Loop In Loop Out (LILO) of one circuit of existing 400 kV Vindhyachal-Korba S/C lines at Mahan STPS (This was short term arrangement meant for providing connectivity to the regional grid. The LILO to be removed and line shall be restored to the original configuration by M/s EPMPL at their cost after commissioning of item (i) and other grid elements identified for providing long term access.)

iii. Gandhar NTPC – Hazira 400 kV D/C (twin moose) line

iv. Hazira 400/220 kV S/s

MoP vide its letter no. 11/4/07-PG dated 26.05.2008 granted prior approval of Government under section 68(1) of the Electricity Act, 2003 to M/s EPTCL for the transmission system mentioned at (2) above.

3. M/s ESSAR representative stated that CERC vide Licence no. 4/Transmission/CERC dated 08-04-2008 and order dated 15-09-2009 granted transmission license to M/s ESSAR Power Transmission Company Ltd. (EPTCL) on Build Own Operate Maintain (BOOM) basis for the following transmission works:

i) Mahan STPS-Sipat (Bilaspur Pooling Station) 400 kV D/C (Quad moose conductor) line

ii) LILO of existing 400 kV Vindhyachal-Korba S/C lines at Mahan STPS

iii) Gandhar NTPC – Hazira 400 kV D/C (twin moose) line

iv) 3x500 MVA 400/220 kV S/s at Hazira

v) 2x50 MVAR line reactors at Sipat (Bilaspur) Pooling station.

vi) 2x50 MVAR line reactors at Mahan STPS

vii) 1x80 MVAR 420 kV bus reactor at Mahan TPS along with associated 400 kV bay

viii) 2 no. 400 kV line bays at Sipat (Bilaspur) Pooling station

ix) 2 no. 400 kV line bays at Gandhar NTPC

x) 4 no. 400 kV line bays at Mahan generation switchyard

4. CEA further stated that the all cases of connectivity on interim LILO in Western Region (including M/s EPMPL case) were discussed in the 40th & 41st meeting of SCPSPWR held on 01.06.2016 & 21.12.2016 respectively, to finalize the replacement of interim LILOs of generation developer by their dedicated transmission lines as per direction of the CERC. In the 41st meeting of SCPSPWR, M/s EPTCL was requested to expedite the implementation of Mahan STPS–Bilaspur Pooling Station 400 kV D/C line before monsoon as against their completion target of December 2017. In line with direction given by CERC vide order no. 30/MP/2014 dated 28.06.2016, the matter was referred to WRPC forum for further deliberation. WRPC in their 33rd meeting held on 31.01.2017 & 01.02.2017 has agreed to the TCC recommendation that M/s EPMPL should complete the line by 30.06.2017 and CTU to discuss such issues in WRPC forum. CTU vide their later dated 15.06.2017 has written to WRLDC to initiate action for disconnection of interim arrangement of M/s EPMPL by 30.06.2017. Subsequently, M/s EPMPL vide their later dated 13.06.2017 has requested CEA for extension of LILO arrangement for evacuation of power from their generation plant up to January 2018.

5. M/s ESSAR representative stated that all elements of transmission system associated with evacuation of power from Mahan STPS has been commissioned except Mahan STPS–Bilaspur Pooling Station 400 kV D/C line. He informed that the delay in completion of the line is due to delay in getting forest clearance from MoEF, severe RoW issues and issues related to project financing. As on date all the issues have been resolved and the work would be started after the Monsoon. He also informed that lenders have already sanctioned funding to the tune of Rs. 175 Crores, which includes promoters’ equity of Rs. 75 Crores. As on date, the equity of Rs. 75 crores has already been deposited in Trust Retention Account (TRA).

6. With regard to progress of the line, M/s ESSAR representative informed that as on date out of 942 foundations, 938 has been completed and 909 towers has been erected and out of 337 km stringing 197 km has been completed. With all inputs required for construction of the line been tied up, the line would be completed by December 2017.

7. M/s ESSAR representative also stated that with existing LILO of Vindhyachal–Korba STPP 400 kV S/C line at Mahan STPS, no overloading or grid security issue has been observed. The LILO would also help in charging of Mahan STPS–

Bilaspur Pooling Station 400 kV D/C line. Without the LILO arrangement, Mahan generating station would be connected radially to the grid through 337 KM long line. Without LILO, outage of one circuit of Mahan STPS–Bilaspur Pooling Station 400 kV D/C line would result in massive voltage & power swings and angular instability at Mahan TPS. Therefore, it is desirable to retain the LILO arrangement even after completion of Mahan STPS–Bilaspur Pooling Station 400 kV D/C line from security and stability of Mahan TPS machines and grid as whole.

8. M/s EPMPL further informed that they have filed a petition in CERC on 14.06.2017 to allow EPMPL to use the LILO connectivity till January, 2018 and the hearing for the same was held on 20.06.2017. The RoP / order of the CERC is awaited.

9. CTU informed that system studies carried out by them also indicate the requirement of another anchoring of Mahan TPS apart from Mahan-Sipat Pooling point 400 kV D/C line. The summary of the studies carried out by CTU is given below:

a) Case-1 : Without Mahan STPS-Sipat pooling station 400 kV D/C line

i) With one unit of 600 MW in service at Mahan STPS – No instability/oscillations observed in power evacuation under n-1 condition.

ii) With both units of 600 MW in service - Rotor angle instability of Mahan STPS units as well as sustained grid oscillations are observed under outage of Mahan STPS -Vindhyachal 400 kV S/C line. With tripping of one unit through SPS (within 450 ms), the system remains stable.

b) Case-2 : With only Mahan STPS–Bilaspur Pooling Station 400 kV D/C line

i) With one unit of 600 MW in service at Mahan STPS – No instability / oscillations observed in power evacuation under n-1 condition.

ii) With both 600 MW units in service at Mahan STPS - Grid instability issues (oscillations) are observed under N-1 conditions of the line. With tripping of one unit through SPS (within 300 ms), the system remains stable.

c) Case-3 : With both lines i.e. LILO of Vindhyachal – Korba STPP 400 kV S/C line at Mahan STPS and Mahan STPS–Bilaspur Pooling Station 400 kV D/C line)

i) With one unit of 600 MW in service at Mahan STPS – No instability / oscillations observed in power evacuation under n-1 condition.

ii) With both 600 MW units in service at Mahan STPS - Power can be reliably evacuated from both units of Mahan TPS. Issue of increase in short circuit level at Vindhyachal due to both the lines needs to be studied in detail.

Thus from the above it is seen that there is requirement of LILO of Vindhyachal – Korba STPP 400 kV S/C line at Mahan STPS in addition to Mahan STPS–Bilaspur Pooling Station 400 kV D/C line for safe and reliable evacuation of power from Mahan STPS.

Similar case of instability / oscillations being observed in the case of Lalitpur Generating station in Northern Region, under the contingency of one ckt of the only 765 kV D/C line was pointed out during the deliberations.

10. CEA stated that the transmission licence given by CERC, inter alia, includes elements, which are part of generation switchyard and with the grant of transmission license to M/s EPTCL, the status of the entire evacuation system from Mahan STPS has been changed from dedicated system (to be built by generation developer) to ISTS (being implemented by TSP M/s EPTCL). Further, system studies carried out by POWERGRID also indicate there is a technical requirement of additional anchoring of Mahan TPS with grid apart from Mahan TPS-Sipat Pooling station 400 kV D/C line.

11. WRPC stated that the decision regarding the opening of the LILO of Vindhyachal–Korba STPP 400 kV S/C line at Mahan TPS has to be taken at WRPC forum and require further deliberations. The WRPC meeting is scheduled in the last week of July 2017. To the query of WRPC whether the LILO section would be a part of final EPMPL – Bilaspur Pooling Station 400 kV D/C line, it was clarified that the LILO and the D/C line are in different direction and now both are ISTS assets. LILO of Vindhyachal–Korba STPP 400 kV S/C line at Mahan TPS is already commissioned and its tariff is being paid from PoC pool.

12. After further discussion, following was decided:

i) The transmission system for evacuation of power from M/s EPMPL generation plant at Mahan is now an ISTS system being implemented by M/s EPTCL (ISTS Transmission Licensee) and not a dedicated transmission system of generation developer. As such LILO of Vindhyachal–Korba STPP 400 kV S/C would not be an interim arrangement. This change would be brought to the notice of constituents in the next meeting of SCPSPWR.

ii) The system studies indicate that the LILO of Vindhyachal–Korba STPP 400 kV S/C line at Mahan STPS would also be essential to take care of contingency of outage of one ckt of Mahan SPTS–Bilaspur Pooling Station 400 kV D/C line for reliable evacuation of power from 2x600 MW units of Mahan TPS.

iii) M/s EPTCL has agreed to complete the remaining works of Mahan STPS–Bilaspur Pooling Station 400 kV D/C line by December 2017.

The meeting ended with thanks to the chair.

Annexure – I

List of Participants of a meeting held on 28.06.2017 regarding extension of interim connectivity of ESSAR Mahan MP Ltd.

S. No.

Name S/Shri/ Ku./Smt.

Designation Mobile E-mail

CENTRAL ELECTRICITY AUTHORITY

1 Prakash Mhaske Member

2 Ravinder Gupta CE(PSPA-I) 9968286184 [email protected]

3 Awdhesh Kumar Yadav

Director 9868664087 [email protected]

4 Shiva Suman Dy. Director 9013929260 [email protected]

5 Vikas Sachan

Assistant Director

7838263699 [email protected]

6 Nitin Deswal Assistant Director

9717818349 [email protected]

POWER GRID/ CTU

7 Ashok Pal GM 9910378105 ashok@ powergridindia.com

8 Pratyush Singh Sr. Engineer 8826094863 pratyush.singh@ powergridindia.com

EPMPL/ EPTCL

9 Madam G. Gupta M.D. 9819731319 [email protected]

10 S.J. Bhujade V.P. 9909993545 [email protected]

11 Shruti Verma 7291887303 [email protected]

WRPC

12 L.K.S. Rathore AS/Ex 9833371844 [email protected]

Annexure - 9.1

Annexure - 9.2

1105 - 1110

Annexure - 13.1

Minutes of a meeting held on 22.09.l2017 to discuss measures to control high

fault level at Korba (NTPC)

The list of participants is enclosed as Annexure – I.

1. CE (PSPA-1), CEA welcomed the participants and stated that in the 40th

meeting of Standing

Committee on Power System Planning of Western Region (SCPSPWR) held on 01.06.2016,

the following scheme was agreed to control high fault current at Korba STPS (3x200 MW +

4x500 MW) of NTPC:

(i) Korba STPS - Korba West 400 kV S/C line to be normally kept open.

(ii) Korba STPS- Sipat STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line

to be reconfigured as Korba STPS- Raipur 400 kV S/C line bypassing at Sipat STPS.


Subsequently in the 41st meeting of SCPSPWR held on 21.12.2016, CSPTCL has raised

concern over above proposal i.e. keeping the Korba STPS - Korba West 400 kV S/C line in

normally open condition, as it would cause overloading of the 400 kV and 220 kV lines

emanating from Korba (West) power plant under n–1–1 contingency conditions. In the

meeting, it was decided that SLDC (Chhattisgarh) concerns / suggestion would be deliberated

in joint meeting of CEA, CTU, WRPC, CSPTCL and WRLDC. Therefore, in line with the

decision of the 41st meeting of SCPSPWR, this meeting has been convened to further deliberate

on measures to control high fault level at 400 kV Korba (NTPC) S/s.

2. Director (PSP-1), CEA stated that an alternative proposal (say A2), in addition to proposal

made in the 41st meeting of SCPSPWR (say A1), has also been studied in consultation with

CTU and the same was circulated. The alternative proposal was reconfiguration of Korba

(West) – Korba (NTPC) 400 kV line and Korba (NTPC) - Sipat 400 kV S/C line as Korba (W)

– Sipat 400 kV S/C line through bypassing at Korba (NTPC)).

3. NTPC representative stated that in the alternative circulated two nos. of 400kV outlets from

Korba (NTPC), one to Korba (W) and another to Sipat would not be available for evacuation

of power. There may be constraints in power evacuation from Korba (NTPC) in case of n-1

contingency conditions of lines emanating from Korba (NTPC).

4. Endorsing the views of NTPC, WRLDC representative stated that sometimes high loading on

the Korba(NTPC)- Sipat 400 kV S/C line is observed due to its short length. Therefore,

bypassing of Korba(NTPC)-Sipat-Raipur 400 kV S/C line at Sipat (so as to form Korba

(NTPC)-Raipur 400 kV line) is required as already proposed in alternative A1. It is seen that

power normally flows from Korba(NTPC) to Korba(W) on Korba(W)- Korba (NTPC)

interconnection, therefore opening of this line would help in reducing the loadings on

transmission system connected with Korba(W) and underlying network of Chhattisgarh.

5. CSPTCL representative stated that they would prefer alternative A2. As far as the alternative

A1 is concerned, overloading of 220 kV network may take place in case of N-1-1 contingency

of 400 kV outlets from Korba(W). To reduce the short circuit level at Korba(NTPC), bus

splitting could also be explored.

6. NTPC stated that bus splitting at Korba(NTPC) is not a feasible solution as auxiliary supply

system is common for whole plant.

7. Director, CEA stated that another alternative, say A3, which involves bypassing of Korba(W)-

Korba(NTPC) 400 kV line and Korba(NTPC)- Essar Mahan 400 kV line at Korba(NTPC) so

as to form Korba(W)-Essar Mahan 400 kV line could also be explored. He added that there

is substantial short circuit current contribution at Korba (NTPC) from Korba (West) and Sipat

and to control the short circuit level at Korba (NTPC) opening of Korba (W) – Korba (NTPC)

400 kV line and bypassing of Korba (NTPC) - Sipat 400 kV S/C line & Sipat-Raipur 400 kV

S/C line at Sipat are required.

8. In the meeting, it was agreed to carryout studies for 2021-22 time frame for three different

alternatives as give below:

Alternative 1 (A1): Korba (NTPC) – Korba (W) 400 kV S/C open + Korba(NTPC) - Sipat

STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line to be

bypassed at Sipat so as to form Korba STPS- Raipur 400 kV S/C line, as

proposed in 41st meeting of SCPSPWR

Alternative 2(A3): Reconfiguration of Korba (West) – Korba (NTPC) 400 kV line and Korba

(NTPC) - Sipat 400 kV S/C line as Korba (W) – Sipat 400 kV S/C line

through bypassing at Korba (NTPC).

Alternative 3(A3): Reconfiguration of Korba(W)-Korba(NTPC) 400 kV line and

Korba(NTPC)- Essar Mahan 400 kV line as Korba(W)-Essar Mahan 400

kV line through bypassing at Korba(NTPC)

Assumptions made in the Base Case are given below:

a) Studies have been carried out for 2021–22 time-frame the load of WR and Chhattisgarh

is considered as 72 GW & 6000 MW respectively as per 19th

EPS

b) All generators near to the Korba (NTPC) were kept on

c) 90% dispatch has been considered for generating stations in and around Korba (NTPC)

i.e. Korba (NTPC), Sipat, Korba (West), Korba (East), Korba (Extension), Essar

Mahan etc.

Study Cases:

CASE-1: Base Case + A1, CASE-2: Base Case +A2, CASE-3: Base Case + A3

The fault levels at various 400 kV buses near to the Korba (NTPC) in 2021 – 22 timeframe for

above alternatives is as tabulated below:

S.

No.

Bus Base case (kA) Case I (kA) Case II (kA) Case III (kA)

1 Korba (NTPC) 51 37 35 40

2 Korba (West) 38 18 25 20

3 Sipat STPS 39 28 34 38

4 Raipur I 26 26 26 26

5 Raipur II 38 38 38 38

6 Vindhyachal (I,II,III) 41 41 41 41

In case-3, as the fault level at Korba (NTPC) of 40 kA is observed, therefore the case was not

studied further.

The power flows through various lines in base case and under contingencies as follows:

a) Base Case Power flows

S. No. Transmission Element MW

1 Korba (N) – Bhilai - I 287

2 Korba (N) – Bhilai - II 279

3 Korba (N) - Bhatapara 401

4 Korba (N) – Korba (W) 115

5 Korba (N) - Vindhyachal -46

6 Korba – Birsinghpur D/C 2 x 283

7 Korba (N) - Sipat 444

8 Korba (N) – Essar Mahan - 180

9 Korba (N) – Raipur D/C 2 x 123

10 Korba (W) – Raita 349

11 Korba (W) – Bhilai 243

12 Korba (W) - Marwa 160

13 400/220 kV ICT at Korba (W) -175 (Injection at 400 kV level

b) Power flows through various lines interconnected with Korba (NTPC) in above alternatives

including under n-1-1 contingencies

S.

No.

Transmission

Element

Case I Case I under

n-1-1

Case II Case II under

n-1-1

1 Korba (N) – Bhilai I 319 Out 365 Out

2 Korba (N) – Bhilai II 311 Out 375 Out

3 Korba (N) - Bhatapara 436 580 495 700

4 Korba (N) – Korba (W) Open Open Bypass Bypass

5 Korba (N) - Vindhyachal -26 22 -4 71

6 Korba – Birsinghpur D/C 2 x 395 2 x 450 2 x 425 2 x 499

7 Korba (N) - Sipat NA NA Bypass Bypass

8 Korba (N) – Raipur 326 464 NA NA

9 Korba (N) – Essar Mahan -154 -95 -127 -35

10 Korba (N) – Raipur D/C 2 x 147 2 x 220 2 x 180 2 x 290

c) Power flows in above alternatives and under n-1-1 contingencies in CSPTCL network

S.

No.

Transmission

Element

Case I Case I

n-1-1

Case II Case II

n-1-1

1 Korba (W) – Raita 317 485 277 Out

2 Korba (W) - Bhilai 218 out 187 Out

3 Korba (W) - Marwa 118 Out 54 242

4 ICT 500 MVA, 400/220 kV 151 325 106 186

)

The results of studies on above options like power flows in base case, power flows during

contingencies, short circuits levels etc.., are enclosed as Annexure II.

9. As per the study results, it is seen that the fault level is in within limits for both A1 & A2. In

alternative A1, one 400 kV interconnections (Korba (NTPC) – Korba (W) 400 kV S/C line)

would not be available from both Korba(W) and Korba (NTPC) 400 kV bus. But in alternative

A2, two no. of 400 kV interconnections (Korba (NTPC) – Korba (W) 400 kV S/C line and

Korba(NTPC) - Sipat STPS 400 kV S/C line) would not be available for evacuation of power

from Korba (NTPC) 400 kV bus.

10. The study suggests the following alternative to control high fault current at Korba STPS (3x200

MW + 4x500 MW) of NTPC:

i. Korba STPS - Korba West 400 kV S/C line to be normally kept open. CSPTCL to take

Korba (W) to Korba (NTPC) 400 kV S/C line into service in case of planned shutdown of

any of 400 kV lines emanating from Korba(W). This line would be normally idle charged

from one end say Korba (NTPC).

ii. Korba STPS- Sipat STPS 400 kV S/C line and Sipat STPS – Raipur 400 kV S/C line to

be rearranged as Korba STPS- Raipur 400 kV S/C line bypassing at Sipat STPS.


11. Members agreed with the above proposal. However, CSPTCL stated that they would convey

their opinion on the proposal after consultation with their SLDC.

Meeting ended with thanks to the chair.

*****

Annexure - I

S.NO. NAME ORGANIZATION DESIGNATION MOBILE E-MAIL

1 Ravinder Gupta CEA CE

2 Awdhesh Kumar Yadav CEA Director

3 Shiva Suman CEA DD

4 Vikas Sachan CEA AD

5 Nitin Deswal CEA AD

6 Pratyush Singh POWERGRID Sr. Engr. 8826094863 [email protected]

7 P.S. Das POWERGRID Asst. GM 9433041837 [email protected]

8 Pushpa Seshadri WRLDC POSOCO Asst. GM 9869404482 [email protected]

9 Rahul Chakrabarti NLDC POSOCO Sr. Engr. 9599449975 [email protected]

10 Subhash Thakur NTPC AGM 9650991067 [email protected]

11 Vivek Chauhan NTPC Mgr 9650999980 [email protected]

12 D.K. Chawda CSPTCL Raipur SE (PL) O/o ED (C&D) 9425202572 [email protected]

List of Participants of a Meeting held on 22.09.2017 to discuss measures to limit High Fault level at NTPC Korba

KORBA FAULT LEVEL STUDY

BASE CASE

314001

KNTPC4

400.3

2314.4

-650.0

314002

RAIPUR

314003

KORBW4

314004

BHI4

403.8

314005

BHATP4

398.9

314008

SIPAT4

403.2

314010

PATH4

403.2

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

408.9

364027

MAHAN

401.7

122.9

-83.7

-122.3

-28.1

122.9

-83.7

-122.3

-28.1

116.0

11.9

-115.9

-19.3

279.4

-85.0

-276.6

53.0

286.7

-84.4

-283.8

56.0

401.0

-35.5

-397.3

8.2

443.8

-109.8

-442.5

98.7

-45.6

-28.9

45.7

-39.6

383.0

-75.8

-377.0

94.2

383.0

-75.8

-377.0

94.2

0.6

180.2

-62.0

20.0

115.3

242.6

-89.9

-240.1

-6.1

3182.8

-48.7R

4-48.8R

5444.9

-118.5R

-51.4

43.1

51.5

-48.5

1-75.0L

2243.7

-75.0L

1131.8

-19.1R

2131.8

-19.1R

3131.8

-19.1R

4131.8

-19.1R

1

-633.7

57.7

636.7

-1.1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-664.5

314049

RAIPUR SPLT

403.8

400.0

401.5

247.1

-65.3-8.7

247.1

-65.3

-245.4

-8.7

229.1

-59.4

-227.7

37.5

-214.4

45.811

-214.4

45.811

74.1

-0.1

-73.7

3.1

74.1

-0.1

-73.7

3.1

-61.0

1.7

61.0

-8.8

10.0

73.9

10.0

186.4

-245.4

1

KORBABYP

400.0

403.3

2

SIPATBYP

400.0

374007

BHADR4

417.4

314015

RAIPUR-FSC1

407.0

314025

RAIPUR-FSC2

407.0

-109.4

-303.9

25.9

240.8

-103.0

-237.1

44.0

240.8

-237.1

44.0

325.5

-58.5

-325.5

41.6

325.5

-58.5

-325.5

41.6

314.0

-107.7

-311.0

33.41

F0.0

-490.3

314028

BIL-POOL

404.2

364025

VIN-POOL

414.7

-116.4

-78.4

117.2

-118.4

-116.4

-78.4

117.2

-118.4

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.4

314022

MARWA

400.0

348.5

-81.3

-345.2

37.5

160.4

-29.4-160.1

-0.7

-60.6

-2.5

60.6

-31.4

-60.6

-2.5

60.6

-31.4

-60.6

-2.5

60.6

-31.4

-254.5

13.6

256.6

-85.2

-307.9

30.9

310.4

-89.6

-307.9310.4

-89.6

1444.9

-122.0R

2444.9

-122.0R 30.9

306.8

-103.0

-178.9

318007

SIPAT7

767.0

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.3

312002

RAIPUR2

218.4

-173.4

-36.3

1

1

-173.4

-36.3

1

1

-173.4

-36.3

1

1

-175.4

3.8 11

183.3

-29.3R

2183.3

-29.3R

220.0

1

312003

KORBW2

1

0.9

191.1

312099

VISHRAMPUR

1150.0

45.0

CHHATTISGARH 220kV NETWORK

314003

KORBW4

1.0

400.0

314004

BHI4

1.0

403.8

314021

RAITA

1.0

403.4

314022

MARWA

1.0

400.0

1

KORBABYP

1.0

400.0

314001

KNTPC4

1.0

400.3

242.6

-89.9

-240.1

-6.1

348.5

-81.3

-345.2

37.5

160.4

-29.4

-160.1

-0.7

116.0

11.9

-115.9

-19.3

3182.8

-48.7R

4183.3

-48.8R

5444.9

-118.5R

-60.6

-2.5

60.6

-31.4

-60.6

60.6

-31.4

-60.6

-2.5

60.6

-31.4

-254.5

13.6

256.6

-85.2

279.4

-85.0

-276.6

53.0

286.7

-84.4

-283.8

56.0

-307.9

30.9 -89.6

-307.9

30.9

310.4

-89.6

1444.9

-122.0R

2444.9

-122.0R

310.4

-2.5

2314.4

-650.0

312003

KORBW2

1.0

220.0

-175.4

3.811

183.3

-29.3R

2183.3

-29.3R

312014

KORBAEXT

1.0

220.0

312017

KOTMIKL

1.0

219.1

312023

MOPKA

1.0

215.8

312001

KORBE2

1.0

220.0

40.8

-7.6

-40.8

6.788.1

-14.4

-86.9

6.7

88.1

-14.4

-86.9

6.7

164.0

2.8

-160.7

4.1

-80.5

13.8

80.5

-14.4

-80.5

13.8

80.5

-14.4

-275.6

48.5

-47.9

11

222.6

-28.8R

2222.9

-28.8R

156.8

3.4

-153.8

2.0

385.7

110.9

312008

RAIGR2

1.0

219.1

312032

BALCO

1.0

220.0

422015

BUDHIPADAR

1.0

220.7

65.9

-12.6

-65.2

1.1

60.1

-22.4

-59.2

3.0

60.1

-22.4

-59.2

3.0

30.3

-20.9

-30.1

7.11

1

275.7

312015

SUHELA2

1.0

217.7

312024

BANARI

1.0

218.2

109.3

-12.9

-106.9

7.0

101.3

-3.4

-100.3

-0.1

-111.3

14.9

112.8

-17.4

312037

MARWA

1.0

218.7

-172.5

-9.011-86.1

-5.6

86.2

4.5

-86.1

-5.6

86.2

4.5

1

157.9

68.7

-150.0

-45.0

1.0

132.0

-160.6

10.111

-160.6

10.111

172.9

10.4

311002

KORE1

1


BASE CASE

314001

KNTPC4

0.0, 0.0

50382.4, -87.2

13543.5

-628.1

314002

RAIPUR

314003

KORBW4

314004

BHI4

0.0, 0.0

38630.6, -85.7

314005

BHATP4

0.0, 0.0

13536.7, -85.3

314008

SIPAT4

0.0, 0.0

38680.2, -87.5

314010

PATH4

314019

BALCO

314030

RAIPUR_POOL

364008

VINDH_W4

0.0, 0.0

40826.6, -87.2

364017

BRSGPR4

364027

MAHAN

0.0, 0.0

25085.9, -86.8

2105.5

-85.1

2670.1

-85.4

2105.5

-85.1

2670.1

-85.4

10278.8

-87.2

20886.4

-86.3

1754.2

-85.5

2166.7

-86.2

1799.9

-85.5

2223.1

-86.2

1983.7

-85.3

4628.8

-85.3

8442.4

-87.3

9983.7

-86.8

2093.6

-85.4

2151.2

-85.3

1853.1

-85.7

1853.1

-85.7

-85.5

2888.2

-85.2

2

1799.8

-85.4

1732.1

-86.4

3951.5

-90.0

4-90.0

52325.2

-90.0

2256.9

-85.6

5630.0

-85.1

1

2

1

2

3

4

1

7527.2

-86.5

11192.0

-85.8

13575.5

-90.0

23575.5

-90.0

1

16333.1

-897.5

314049

RAIPUR SPLT

0.0, 0.0

37862.3, -85.5

2942.1

-84.9-86.2

2942.1

-84.9

2988.6

-86.2

2727.6

-85.1

2770.7

-86.4

8388.9

-89.6

8388.9

-89.6

1665.6

-84.9

1665.6

-84.9

13871.1

-85.0

14672.0

-85.7

1

1

2988.6

1

KORBABYP

0.0, 0.0

36755.5, -86.8

0.0, 0.0

25943.3, -85.1

2

SIPATBYP

374007

BHADR4

314015

RAIPUR-FSC1

314025

RAIPUR-FSC2

-87.0

1528.4

-85.0

1528.4

3286.8

-83.2

3286.8

-83.2

2072.4

-87.01

F

314028

BIL-POOL

364025

VIN-POOL

1935.1

-85.2

1935.1

-85.2

474046

RANCHI

951.5

314021

RAITA

0.0, 0.0

26577.3, -85.5

314022

MARWA

2370.6

-85.4

3047.8

-86.0

4002.0

-85.7

1771.0

-85.6

5382.5

-85.3

1771.0

-85.6

5382.5

-85.3

1771.0

-85.6

5382.5

-85.3

1425.0

-86.5

2113.3

-86.0

2113.3

1

2-86.0

1933.0

-85.0

2591.6

318007

SIPAT7

0.0, 0.0

39979.7, -88.2

11758.7

-89.8

21758.7

-89.8

31758.7

-89.8

41399.9

-89.75

1399.9

-89.7

1

312002

RAIPUR2

2

1

312003

KORBW2

1


CASE 1: AS AGREED IN 41st WR SCM

314001

KNTPC4

400.3

2314.4

-650.0

314002

RAIPUR

314003

KORBW4

314004

BHI4

404.2

314005

BHATP4

398.9

314008

SIPAT4

404.0

314010

PATH4

403.4

314019

BALCO

400.0

314030

RAIPUR_POOL

408.8

364008

VINDH_W4

400.0

364017

BRSGPR4

408.5

364027

MAHAN

401.7

146.8

-84.5

-145.9

-24.5

146.8

-84.5

-145.9

-24.5

311.4

-86.3

-307.8

62.0

319.5

-85.7

-315.8

65.3

436.3

-35.3

-431.9

15.5

-26.3

-31.0

26.4

-38.3

402.0

-72.0

-395.3

96.7

402.0

-72.0

-395.3

96.7

-3.6

155.6

-61.6

20.0

115.3

220.5

-92.4

-218.5

-8.3

3182.8

-46.1R

4-46.2R

5444.9

-112.2R

-70.9

49.6

71.1

-54.4

1-75.0L

2243.7

-75.0L

1131.8

-19.5R

2131.8

-19.5R

3131.8

-19.5R

4131.8

-19.5R

1

-640.4

57.4

643.6

-0.1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-659.0

314049

RAIPUR SPLT

404.4

400.0

401.6

207.0

-62.4-17.2

207.0

-62.4

-205.9

-17.2

-270.5

59.411

-270.5

59.411

63.5

3.0

-63.2

-1.0

63.5

3.0

-63.2

-1.0

-67.0

-20.5

67.0

13.3

10.0

74.2

10.0

186.5

-205.9

1

KORBABYP

400.0

403.3

2

SIPATBYP

402.7

374007

BHADR4

417.5

314015

RAIPUR-FSC1

407.8

314025

RAIPUR-FSC2

407.8

329.8

-75.4

-326.9

15.1

-107.0

-306.6

23.8

243.0

-101.1

-239.2

42.4

243.0

-239.2

42.4

322.8

-61.7

-322.8

45.0

322.8

-61.7

-322.8

45.0

-329.8

330.6

-95.0

316.4

-106.2

-313.4

32.31

F0.0

-490.5

75.4

314028

BIL-POOL

404.4

364025

VIN-POOL

414.7

-125.1

-76.4

126.1

-119.2

-125.1

-76.4

126.1

-119.2

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.8

314022

MARWA

400.2

320.1

-84.9

-317.3

35.4

118.8

-30.2

-118.6

-1.4

-45.8

-3.9

45.8

-30.2

-45.8

-3.9

45.8

-30.2

-45.8

-3.9

45.8

-30.2

-241.1

12.7

243.0

-86.7

-296.2

30.7

298.5

-91.4

-296.2298.5

-91.4

1444.9

-125.0L

2444.9

-125.0L 30.7

309.5

-101.1

-154.6

318007

SIPAT7

767.5

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.6

312002

RAIPUR2

218.6

-173.9

-37.6

1

1

-173.9

-37.6

1

1

-173.9

-37.6

1

1

312003

KORBW2

-151.5

2.9 11

183.3

-28.6R

2183.3

-28.6R

220.0

1

1

0.9

191.1

312099

VISHRAMPUR

1150.0

45.0


314003

KORBW4

1.0

400.0

314004

BHI4

1.0

404.2

314021

RAITA

1.0

403.8

314022

MARWA

1.0

400.2

1

KORBABYP

1.0

400.0

314001

KNTPC4

1.0

400.3

220.5

-92.4

-218.5

-8.3

320.1

-84.9

-317.3

35.4

118.8

-30.2

-118.6

-1.4

3182.8

-46.1R

4183.3

-46.2R

5444.9

-112.2R

-45.8

-3.9

45.8

-30.2

-45.8

45.8

-30.2

-45.8

-3.9

45.8

-30.2

-241.1

12.7

243.0

-86.7

311.4

-86.3

-307.8

62.0

319.5

-85.7

-315.8

65.3

-296.2

30.7 -91.4

-296.2

30.7

298.5

-91.4

1444.9

-125.0L

2444.9

-125.0L

298.5

-3.9

2314.4

-650.0

312003

KORBW2

1.0

220.0

-151.5

2.911

183.3

-28.6R

2183.3

-28.6R

312014

KORBAEXT

1.0

220.0

312017

KOTMIKL

1.0

219.1

312023

MOPKA

1.0

215.9

312001

KORBE2

1.0

220.0

35.4

-6.7

-35.4

5.785.2

-14.2

-84.2

6.1

85.2

-14.2

-84.2

6.1

160.6

2.2

-157.5

4.0

-75.7

12.9

75.8

-13.6

-75.7

12.9

75.8

-13.6

-275.3

48.5

-47.8

11

222.6

-29.7R

2222.9

-29.8R

153.9

2.7

-151.0

2.0

385.7

108.0

312008

RAIGR2

1.0

219.1

312032

BALCO

1.0

220.0

422015

BUDHIPADAR

1.0

220.7

63.5

-12.7

-62.9

0.9

59.3

-22.4

-58.4

2.8

59.3

-22.4

-58.4

2.8

31.4

-20.7

-31.2

7.01

1

275.4

312015

SUHELA2

1.0

217.8

312024

BANARI

1.0

218.3

105.8

-13.3

-103.5

6.6

99.6

-4.1

-98.7

0.4

-106.7

14.1

108.0

-17.3

312037

MARWA

1.0

218.8

-168.4

-9.411-84.0

-5.8

84.2

4.7

-84.0

-5.8

84.2

4.7

1

157.9

68.7

-150.0

-45.0

1.0

132.0

-159.3

10.011

-159.3

10.011

172.9

10.4

311002

KORE1

1


CASE 1: AS AGREED IN 41st WR SCM

314001

KNTPC4

0.0, 0.0

36430.9, -86.9

13543.5

-628.1

314002

RAIPUR

314003

KORBW4

314004

BHI4

0.0, 0.0

37426.9, -85.8

314005

BHATP4

0.0, 0.0

13376.9, -85.3

314008

SIPAT4

0.0, 0.0

27692.8, -87.7

314010

PATH4

314019

BALCO

314030

RAIPUR_POOL

364008

VINDH_W4

0.0, 0.0

40711.4, -87.2

364017

BRSGPR4

364027

MAHAN

0.0, 0.0

24996.1, -86.8

2247.4

-85.0

2548.0

-85.5

2247.4

-85.0

2548.0

-85.5

2313.3

-85.2

2281.2

-85.8

2373.6

-85.2

2340.6

-85.8

2597.4

-85.2

4497.9

-85.3

2114.7

-85.3

2081.4

-85.3

1885.5

-85.6

1885.5

-85.6

-85.4

2808.2

-85.2

2

2245.2

-85.1

1259.2

-87.7

3951.5

-90.0

4-90.0

52325.2

-90.0

2298.6

-85.4

5608.6

-85.1

1

2

1

2

3

4

1

7485.4

-86.5

11170.8

-85.8

13575.5

-90.0

23575.5

-90.0

1

16333.1

-897.5

314049

RAIPUR SPLT

0.0, 0.0

37484.0, -85.5

3706.5

-84.8-86.2

3706.5

-84.8

3248.2

-86.2

8478.9

-89.6

8478.9

-89.6

1672.3

-84.8

1672.3

-84.8

14119.5

-84.9

14061.0

-85.8

1

1

3248.2

1

KORBABYP

0.0, 0.0

17878.4, -87.1

0.0, 0.0

25723.1, -85.1

2

SIPATBYP

374007

BHADR4

314015

RAIPUR-FSC1

314025

RAIPUR-FSC2

2579.0

-86.0

-87.1

1527.0

-85.0

1527.0

3287.3

-83.1

3287.3

-83.1

2611.2

-85.3

2077.9

-87.01

F

314028

BIL-POOL

364025

VIN-POOL

1940.8

-85.2

1940.8

-85.2

474046

RANCHI

951.5

314021

RAITA

0.0, 0.0

25006.8, -85.6

314022

MARWA

2931.6

-85.1

2185.2

-87.2

4775.1

-85.4

1451.0

-86.3

5397.9

-85.2

1451.0

-86.3

5397.9

-85.2

1451.0

-86.3

5397.9

-85.2

1145.8

-87.5

1735.2

-86.7

1735.2

1

2-86.7

1931.3

-85.0

2637.1

318007

SIPAT7

0.0, 0.0

38167.7, -88.0

11758.7

-89.8

21758.7

-89.8

31758.7

-89.8

41399.9

-89.75

1399.9

-89.7

1

312002

RAIPUR2

2

1

312003

KORBW2

1


41st WR SCM CASE: N-1-1_KORBA(NTPC)-BHILAI D/c OUT

314001

KNTPC4

400.0

2314.4

-444.8

314002

RAIPUR

314003

KORBW4

314004

BHI4

404.2

314005

BHATP4

397.8

314008

SIPAT4

403.7

314010

PATH4

403.1

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

407.2

364027

MAHAN

401.6

220.5

-82.5

-218.6

-14.2

220.5

-82.5

-218.6

-14.2

580.1

-21.9

-572.4

40.0

22.3

-36.7

-22.2

-32.7

450.7

-61.7

-442.3

104.4

450.7

-61.7

-442.3

104.4

-13.5

95.4

-58.4

20.0

114.9

230.5

-92.4

-228.3

-6.3

3182.8

-46.3R

4-46.4R

5444.9

-112.7R

-178.4

76.2

179.1

-75.3

1-75.0L

2243.7

-75.0L

1131.8

-19.1R

2131.8

-19.1R

3131.8

-19.1R

4131.8

-19.1R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-629.7

314049

RAIPUR SPLT

403.8

400.0

401.6

239.7

-61.3

-238.2

-13.9

222.3

-55.8

-220.9

32.8

-290.3

56.611

-290.3

56.611

59.3

1.9

-59.1

-0.4

59.3

1.9

-59.1

-0.4

-351.8

66.5

352.1

-70.4

10.0

73.9

10.0

186.5

1

KORBABYP

402.6

2

SIPATBYP

401.9

374007

BHADR4

417.6

314015

RAIPUR-FSC1

407.7

314025

RAIPUR-FSC2

407.7

463.2

-74.7

-457.5

44.9

-110.9

-293.6

24.2

232.5

-103.9

-229.0

42.3

232.5

-229.0

42.3

357.9

-72.2

-357.9

51.6

357.9

-72.2

-357.9

51.6

-463.2

464.6

-84.2

287.7

-108.8

-285.2

26.51

F0.0

-490.6

74.7

314028

BIL-POOL

404.1

364025

VIN-POOL

414.5

-141.8

-73.8

143.1

-118.7

-141.8

-73.8

143.1

-118.7

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.8

314022

MARWA

400.2

329.4

-84.6

-326.4

36.9

127.7

-30.3-127.5

-1.0

-62.6

-1.1

62.6

-32.8

-62.6

-1.1

62.6

-32.8

-62.6

-1.1

62.6

-32.8

-250.7

14.8

252.8

-87.1

-302.1

31.8

304.5

-91.5

-302.1304.5

-91.5

1444.9

-125.0L

2444.9

-125.0L 31.8

296.4

-103.9

-95.0

364022

VINDH-IV,V

413.2

-666.4

64.5

669.8

-4.3

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

400.0

318007

SIPAT7

767.1

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.3

312002

RAIPUR2

218.3

-173.0

-36.8

1

1

-173.0

-36.8

1

1

-173.0

-36.8

1

1

-123.4

1.911

183.3

-27.0R

2183.3

-27.0R

220.0

1

312003

KORBW2

1


41st WR SCM CASE: N-1-1 - KORBA(W) BHILAI & KORBA(W) RAITA OUT

314001

KNTPC4

400.0

2314.4

-642.9

314002

RAIPUR

314003

KORBW4

314004

BHI4

403.4

314005

BHATP4

398.3

314008

SIPAT4

403.8

314010

PATH4

403.3

314019

BALCO

400.0

314030

RAIPUR_POOL

408.8

364008

VINDH_W4

400.0

364017

BRSGPR4

408.4

364027

MAHAN

401.7

145.1

-84.5

-144.2

-24.6

145.1

-84.5

-144.2

-24.6

320.5

-82.9

-316.7

61.0

328.9

-82.2

-325.0

64.3

432.0

-32.6

-427.7

12.1

-29.2

-32.0

29.3

-37.2

396.9

-73.6

-390.4

96.7

396.9

-73.6

-390.4

96.7

-4.5

158.6

-60.2

20.0

115.1

3182.8

-7.3R

4-7.3R

5444.9

-17.7R

-96.0

49.6

96.3

-53.6

1-75.0L

2243.7

-75.0L

1131.8

-19.3R

2131.8

-19.3R

3131.8

-19.3R

4131.8

-19.3R

1

-636.6

58.7

639.7

-1.8

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-655.5

314049

RAIPUR SPLT

403.8

400.0

401.6

215.5

-59.2-19.1

215.5

-59.2

-214.3

-19.1

-276.4

56.911

-276.4

56.911

60.9

2.3

-60.6

-0.7

60.9

2.3

-60.6

-0.7

-135.6

-29.9

135.6

23.2

10.0

73.9

10.0

186.5

-214.3

1

KORBABYP

400.0

403.1

2

SIPATBYP

402.3

374007

BHADR4

417.4

314015

RAIPUR-FSC1

407.2

314025

RAIPUR-FSC2

407.2

335.0

-73.4

-332.0

14.3

-109.5

-302.8

25.7

239.9

-103.0

-236.2

43.7

239.9

-236.2

43.7

335.5

-62.3

-335.5

44.3

335.5

-62.3

-335.5

44.3

-335.0

335.7

-92.6

308.6

-109.9

-305.7

34.31

F0.0

-490.2

73.4

314028

BIL-POOL

404.3

364025

VIN-POOL

414.6

-125.5

-76.4

126.5

-119.0

-125.5

-76.4

126.5

-119.0

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

402.9

314022

MARWA

400.0

486.6

-45.4-483.9

41.7

-32.9

-3.5

32.9

-30.6

-32.9

-3.5

32.9

-30.6

-32.9

-3.5

32.9

-30.6

-333.8

26.5

337.5

-81.1

-422.1

48.9

426.7

-84.4

-422.1426.7

-84.4

1444.9

-92.3R

2444.9

-92.3R 48.9

305.7

-103.0

-157.6

318007

SIPAT7

767.3

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.5

312002

RAIPUR2

218.1

-170.1

-39.0

1

1

-170.1

-39.0

1

1

-170.1

-39.0

1

1

-324.4

13.211

183.3

-33.3R

2183.3

-33.3R

220.0

1

312003

KORBW2

1

0.9

191.1

312099

VISHRAMPUR

1150.0

45.0


314003

KORBW4

1.0

400.0

314004

BHI4

1.0

403.4

314021

RAITA

1.0

402.9

314022

MARWA

1.0

400.0

1

KORBABYP

1.0

400.0

314001

KNTPC4

1.0

400.0

486.6

-45.4

-483.9

41.7

3182.8

-7.3R

4183.3

-7.3R

5444.9

-17.7R

-32.9

-3.5

32.9

-30.6

-32.9

32.9

-30.6

-32.9

-3.5

32.9

-30.6

-333.8

26.5

337.5

-81.1

320.5

-82.9

-316.7

61.0

328.9

-82.2

-325.0

64.3

-422.1

48.9 -84.4

-422.1

48.9

426.7

-84.4

1444.9

-92.3R

2444.9

-92.3R

426.7

-3.5

2314.4

-642.9

312003

KORBW2

1.0

220.0

-324.4

13.211

183.3

-33.3R

2183.3

-33.3R

312014

KORBAEXT

1.0

220.0

312017

KOTMIKL

1.0

219.0

312023

MOPKA

1.0

215.4

312001

KORBE2

1.0

220.0

77.7

-13.9

-77.6

13.3101.0

-15.0

-99.5

9.3

101.0

-15.0

-99.5

9.3

182.4

4.4

-178.4

6.9

-114.3

19.9

114.5

-20.2

-114.3

19.9

114.5

-20.2

-285.8

50.4

-49.7

11

222.6

-25.7R

2222.9

-25.7R

172.0

5.0

-168.4

3.8

385.7

125.3

312008

RAIGR2

1.0

219.0

312032

BALCO

1.0

220.0

422015

BUDHIPADAR

1.0

220.6

86.1

-14.1

-84.9

5.4

74.2

-23.1

-72.8

6.5

74.2

-23.1

-72.8

6.5

32.3

-21.2

-32.1

7.51

1

286.0

312015

SUHELA2

1.0

217.3

312024

BANARI

1.0

218.0

124.2

-11.9

-121.1

10.1

112.9

-3.1

-111.8

0.9

-127.8

17.9

129.8

-17.6

312037

MARWA

1.0

218.5

-182.8

-10.111-91.2

-6.0

91.4

5.0

-91.2

-6.0

91.4

5.0

1

157.9

68.7

-150.0

-45.0

1.0

132.0

-167.9

11.311

-167.9

11.311

172.9

10.4

311002

KORE1

1


KORBA(W) TO SIPAT BYPASSING KORBA (NTPC)

314001

KNTPC4

400.0

2314.4

-555.2

314002

RAIPUR

314003

KORBW4

314004

BHI4

404.3

314005

BHATP4

398.5

314008

SIPAT4

404.2

314010

PATH4

403.4

314019

BALCO

400.0

314030

RAIPUR_POOL

408.8

364008

VINDH_W4

400.0

364017

BRSGPR4

407.9

364027

MAHAN

401.7

180.0

-85.2

-178.7

-18.8

180.0

-85.2

-178.7

-18.8

365.5

-86.2

-360.5

77.1

375.0

-85.7

-369.9

80.7

494.9

-33.0

-489.2

27.4

-3.7

-34.5

3.7

-35.2

424.8

-68.0

-417.3

100.9

424.8

-68.0

-417.3

100.9

-9.4

127.4

-59.3

20.0

115.1

187.2

-84.3

-185.8

-23.6

3182.8

-52.5L

4-52.5L

5444.9

-125.0L

-105.4

59.8

105.7

-63.2

1-75.0L

2243.7

-75.0L

1131.8

-19.5R

2131.8

-19.5R

3131.8

-19.5R

4131.8

-19.5R

1

-652.4

60.7

655.6

-2.0

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-645.2

314049

RAIPUR SPLT

404.3

402.4

401.6

217.5

-60.8-17.6

217.5

-60.8

-216.2

-17.6

201.7

-55.4

-200.6

29.5

-286.7

62.811

-286.7

62.811

184.9

-71.7

-184.7

44.3

60.7

3.5

-60.4

-1.9

60.7

3.5

-60.4

-1.9

-19.0

-4.8

19.0

-2.5

10.0

74.1

71.7

185.0

-78.4

10.0

186.5

-216.2

-184.9

1

KORBABYP

401.8

403.1

2

SIPATBYP

400.0

374007

BHADR4

417.6

314015

RAIPUR-FSC1

408.0

314025

RAIPUR-FSC2

408.0

-108.2

-299.6

22.9

237.4

-101.9

-233.8

41.5

237.4

-233.8

41.5

337.8

-67.2

-337.8

48.9

337.8

-67.2

-337.8

48.9

311.8

-106.3

-308.8

30.91

F0.0

-490.6

314028

BIL-POOL

404.4

364025

VIN-POOL

414.6

-133.1

-74.9

134.2

-119.3

-133.1

-74.9

134.2

-119.3

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

404.3

314022

MARWA

401.3

277.4

-74.9

-275.3

16.9

54.6

-11.5-54.6

-21.6

-24.0

-14.7

24.0

-19.7

-24.0

-14.7

24.0

-19.7

-24.0

-14.7

24.0

-19.7

-220.9

2.2

222.5

-80.2

-278.7

22.0

280.7

-86.1

-278.7280.7

-86.1

1444.9

-125.0L

2444.9

-125.0L 22.0

302.5

-101.9

-126.8

318007

SIPAT7

767.6

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.6

312002

RAIPUR2

218.6

-170.8

-37.1

1

1

-170.8

-37.1

1

1

-170.8

-37.1

1

1

-106.8

-16.3 11

183.3

-35.5R

2183.3

-35.5R

220.0

1

312003

KORBW2

1

0.9

191.1

312099

VISHRAMPUR

1150.0

45.0


314003

KORBW4

1.0

401.8

314004

BHI4

1.0

404.3

314021

RAITA

1.0

404.3

314022

MARWA

1.0

401.3

1

KORBABYP

1.0

402.4

314001

KNTPC4

1.0

400.0

187.2

-84.3

-185.8

-23.6

277.4

-74.9

-275.3

16.9

54.6

-11.5

-54.6

-21.6

-184.9

71.7

185.0

-78.4

3182.8

-52.5L

4183.3

-52.5L

5444.9

-125.0L

-24.0

-14.7

24.0

-19.7

-24.0

24.0

-19.7

-24.0

-14.7

24.0

-19.7

-220.9

2.2

222.5

-80.2

365.5

-86.2

-360.5

77.1

375.0

-85.7

-369.9

80.7

-278.7

22.0 -86.1

-278.7

22.0

280.7

-86.1

1444.9

-125.0L

2444.9

-125.0L

280.7

-14.7

2314.4

-555.2

312003

KORBW2

1.0

220.0

-106.8

-16.311

183.3

-35.5R

2183.3

-35.5R

312014

KORBAEXT

1.0

220.0

312017

KOTMIKL

1.0

219.2

312023

MOPKA

1.0

215.9

312001

KORBE2

1.0

220.0

25.9

-5.0

-25.9

4.178.8

-13.8

-77.9

4.8

78.8

-13.8

-77.9

4.8

156.3

2.1

-153.3

3.1

-66.7

11.3

66.8

-12.1

-66.7

11.3

66.8

-12.1

-271.2

47.8

-47.1

11

222.6

-31.1R

2222.9

-31.2R

150.4

2.6

-147.7

1.4

385.7

104.9

312008

RAIGR2

1.0

219.1

312032

BALCO

1.0

220.0

422015

BUDHIPADAR

1.0

220.8

57.7

-11.9

-57.2

-0.5

55.0

-22.1

-54.2

1.8

55.0

-22.1

-54.2

1.8

30.4

-20.8

-30.3

7.01

1

271.4

312015

SUHELA2

1.0

217.8

312024

BANARI

1.0

218.5

101.3

-13.2

-99.2

5.4

98.7

-6.0

-97.8

2.2

-99.9

11.0

101.1

-15.2

312037

MARWA

1.0

219.1

-160.3

-13.711-80.0

-8.1

80.2

6.9

-80.0

-8.1

80.2

6.9

1

157.9

68.7

-150.0

-45.0

1.0

132.0

-157.2

9.711

-157.2

9.711

172.9

10.4

311002

KORE1

1


KORBA(W) TO SIPAT BYPASSING KORBA (NTPC)

314001

KNTPC4

0.0, 0.0

34552.8, -87.0

13543.5

-628.1

314002

RAIPUR

314003

KORBW4

314004

BHI4

0.0, 0.0

38150.2, -85.8

314005

BHATP4

0.0, 0.0

13480.9, -85.3

314008

SIPAT4

0.0, 0.0

34717.6, -87.5

314010

PATH4

314019

BALCO

314030

RAIPUR_POOL

364008

VINDH_W4

0.0, 0.0

40685.9, -87.3

364017

BRSGPR4

364027

MAHAN

0.0, 0.0

24976.7, -86.8

2300.9

-85.0

2547.1

-85.5

2300.9

-85.0

2547.1

-85.5

2517.5

-85.2

2414.2

-85.8

2583.1

-85.2

2477.1

-85.8

2797.4

-85.2

4507.0

-85.4

2116.3

-85.3

2066.4

-85.4

1889.9

-85.6

1889.9

-85.6

-85.4

2789.4

-85.3

2

2080.0

-85.2

1500.4

-87.0

3951.5

-90.0

4-90.0

52325.2

-90.0

2411.1

-85.4

5669.2

-85.1

1

2

1

2

3

4

1

7475.8

-86.5

11165.8

-85.8

13575.5

-90.0

23575.5

-90.0

1

16333.1

-897.5

314049

RAIPUR SPLT

0.0, 0.0

37232.8, -85.5

2954.3

-84.9-86.5

2954.3

-84.9

2808.4

-86.5

2738.9

-85.1

2603.7

-86.7

8421.0

-89.6

8421.0

-89.6

5918.5

-86.9

1666.8

-84.8

1666.8

-84.8

13583.9

-85.0

14559.0

-85.7

1

7545.0

-86.7

1

2808.4

1

KORBABYP

0.0, 0.0

24712.4, -87.1

0.0, 0.0

25776.7, -85.1

2

SIPATBYP

374007

BHADR4

314015

RAIPUR-FSC1

314025

RAIPUR-FSC2

-87.0

1528.0

-85.0

1528.0

3300.9

-83.1

3300.9

-83.1

2069.4

-87.01

F

314028

BIL-POOL

364025

VIN-POOL

1942.9

-85.2

1942.9

-85.2

474046

RANCHI

951.5

314021

RAITA

0.0, 0.0

25849.5, -85.5

314022

MARWA

2724.3

-85.2

2630.5

-86.5

4497.4

-85.5

1615.9

-86.0

5397.8

-85.3

1615.9

-86.0

5397.8

-85.3

1615.9

-86.0

5397.8

-85.3

1289.4

-87.0

1932.3

-86.4

1932.3

1

2-86.4

1932.6

-85.0

2638.7

318007

SIPAT7

0.0, 0.0

39439.9, -88.1

11758.7

-89.8

21758.7

-89.8

31758.7

-89.8

41399.9

-89.75

1399.9

-89.7

1

312002

RAIPUR2

2

1

312003

KORBW2

1


KORBA(W)-SIPAT BYPASSING KORBA(NTPC): N-1-1 KORBA-BHATAPARA & KORBA BHILAI OUT

314001

KNTPC4

400.0

2314.4

-359.2

314002

RAIPUR

314003

KORBW4

314004

BHI4

403.8

314005

BHATP4

397.9

314008

SIPAT4

403.8

314010

PATH4

403.0

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

405.5

364027

MAHAN

401.5

312.1

-74.8

-308.3

-0.4

312.1

-74.8

-308.3

-0.4

597.5

-57.9

-584.4

139.7

84.8

-40.3

-84.4

-25.1

513.0

-44.9

-502.2

113.5

513.0

-44.9

-502.2

113.5

-21.6

18.1

-54.1

20.0

114.3

202.6

-83.8

-200.9

-21.0

3182.8

-52.5L

4-52.5L

5444.9

-125.0L

203.2

36.3

-202.4

-34.7

1-75.0L

2243.7

-75.0L

1131.8

-19.0R

2131.8

-19.0R

3131.8

-19.0R

4131.8

-19.0R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-593.5

314049

RAIPUR SPLT

403.7

402.0

401.6

248.2

-59.4-14.7

248.2

-59.4

-246.6

-14.7

230.1

-54.0

-228.7

31.9

-350.6

63.311

-350.6

63.311

121.4

-69.4

-121.3

40.2

48.0

3.0

-47.8

-2.4

48.0

3.0

-47.8

-2.4

-251.9

26.3

252.0

-31.8

10.0

73.9

69.4

121.5

-76.6

10.0

186.5

-246.6

-121.4

1

KORBABYP

401.7

2

SIPATBYP

400.0

374007

BHADR4

417.6

314015

RAIPUR-FSC1

408.4

314025

RAIPUR-FSC2

408.4

-113.0

-278.3

21.8

220.2

-105.0

-217.0

40.0

220.2

-217.0

40.0

391.3

-87.1

-391.3

62.3

391.3

-87.1

-391.3

62.3

276.8

-111.8

-274.5

26.71

F0.0

-490.7

314028

BIL-POOL

404.0

364025

VIN-POOL

414.3

-164.2

-69.5

165.9

-118.3

-164.2

-69.5

165.9

-118.3

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.7

314022

MARWA

400.6

296.2

-73.5

-293.8

19.0

84.9

-10.5-84.8

-22.0

-36.8

-11.3

36.9

-22.9

-36.8

-11.3

36.9

-22.9

-36.8

-11.3

36.9

-22.9

-229.8

4.6

231.5

-80.8

-285.2

23.4

287.3

-86.1

-285.2287.3

-86.1

1444.9

-125.0L

2444.9

-125.0L 23.4

280.8

-105.0

-18.0

364022

VINDH-IV,V

413.1

-697.8

73.2

701.4

-9.3

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

401.3

318007

SIPAT7

767.0

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.3

312002

RAIPUR2

218.1

-177.1

-38.0

1

1

-177.1

-38.0

1

1

-177.1

-38.0

1

1

-105.8

-11.611

183.3

-32.2R

2183.3

-32.2R

220.0

1

312003

KORBW2

1


KORBA(W)-SIPAT BYPASSING KORBA(NTPC): N-1-1 KORBA-BHILAI D/c OUT

314001

KNTPC4

400.0

2314.4

-325.1

314002

RAIPUR

314003

KORBW4

314004

BHI4

405.3

314005

BHATP4

397.5

314008

SIPAT4

404.4

314010

PATH4

403.2

314019

BALCO

400.0

314030

RAIPUR_POOL

408.8

364008

VINDH_W4

400.0

364017

BRSGPR4

405.9

364027

MAHAN

401.6

290.4

-78.9

-287.1

-2.2

290.4

-78.9

-287.1

-2.2

700.7

-9.1

-689.4

67.1

70.8

-39.7

-70.5

-27.0

498.6

-49.1

-488.4

111.3

498.6

-49.1

-488.4

111.3

-20.3

35.1

-55.1

20.0

114.7

209.2

-87.2

-207.4

-17.2

3182.8

-52.5L

4-52.5L

5444.9

-125.0L

-257.0

105.7

258.4

-97.2

1-75.0L

2243.7

-75.0L

1131.8

-19.4R

2131.8

-19.4R

3131.8

-19.4R

4131.8

-19.4R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-604.2

314049

RAIPUR SPLT

404.9

402.9

401.6

248.0

-64.2-10.3

248.0

-64.2

-246.4

-10.3

230.0

-58.4

-228.6

36.3

-343.0

70.711

-343.0

70.711

139.1

-64.6

-139.0

35.7

49.5

4.8

-49.3

-4.1

49.5

4.8

-49.3

-4.1

-278.2

59.8

278.4

-65.0

10.0

74.3

64.6

139.2

-71.8

10.0

186.5

-246.4

-139.1

1

KORBABYP

402.2

2

SIPATBYP

400.0

374007

BHADR4

417.9

314015

RAIPUR-FSC1

409.9

314025

RAIPUR-FSC2

409.9

-109.1

-280.9

17.7

222.3

-102.1

-219.1

36.8

222.3

-219.1

36.8

389.3

-92.6

-389.3

68.1

389.3

-92.6

-389.3

68.1

278.2

-106.4

-275.9

20.61

F0.0

-491.3

314028

BIL-POOL

404.2

364025

VIN-POOL

414.4

-159.9

-69.9

161.5

-119.0

-159.9

-69.9

161.5

-119.0

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

405.1

314022

MARWA

401.9

301.0

-77.8

-298.6

23.6

83.0

-16.5-82.9

-16.3

-51.4

-8.2

51.5

-26.1

-51.4

-8.2

51.5

-26.1

-51.4

-8.2

51.5

-26.1

-239.1

7.8

240.9

-83.1

-291.5

25.9

293.7

-88.3

-291.5293.7

-88.3

1444.9

-125.0L

2444.9

-125.0L 25.9

283.4

-102.1

-35.1

364022

VINDH-IV,V

413.1

-689.7

69.8

693.3

-6.9

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

284.5

-93.8

-284.2

73.5

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

402.2

318007

SIPAT7

767.5

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.6

312002

RAIPUR2

218.8

-164.5

-39.2

1

1

-164.5

-39.2

1

1

-164.5

-39.2

1

1

-78.6

-21.511

183.3

-36.5R

2183.3

-36.5R

220.0

1

312003

KORBW2

1


Bypass Korba NTPC: N-1-1_KORBA(W)-BHILAI & Korba (W)- Raita OUT

314001

KNTPC4

400.0

2314.4

-526.2

314002

RAIPUR

314003

KORBW4

314004

BHI4

403.0

314005

BHATP4

397.7

314008

SIPAT4

403.2

314010

PATH4

403.1

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

407.9

364027

MAHAN

401.6

177.4

-83.2

-176.1

-21.2

177.4

-83.2

-176.1

-21.2

377.1

-77.8

-371.8

72.0

386.9

-77.0

-381.5

75.5

499.5

-25.0

-493.8

20.8

-8.9

-34.0

8.9

-35.6

419.3

-68.9

-412.1

99.9

419.3

-68.9

-412.1

99.9

-8.1

134.3

-59.8

20.0

114.9

3182.8

-29.3R

4-29.4R

5444.9

-71.4R

-124.1

55.7

124.4

-58.4

1-75.0L

2243.7

-75.0L

1131.8

-18.9R

2131.8

-18.9R

3131.8

-18.9R

4131.8

-18.9R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-643.5

314049

RAIPUR SPLT

403.2

400.7

401.5

255.3

-60.7-12.0

255.3

-60.7

-253.6

-12.0

236.7

-55.1

-235.2

34.3

-250.1

48.011

-250.1

48.011

381.7

-96.5

-380.8

80.3

66.8

0.1

-66.5

2.1

66.8

0.1

-66.5

2.1

-159.8

-5.7

159.9

-0.9

10.0

73.7

96.5

382.1

-99.7

10.0

186.4

-253.6

-381.7

1

KORBABYP

402.7

402.3

374007

BHADR4

417.4

314015

RAIPUR-FSC1

406.7

314025

RAIPUR-FSC2

406.7

-112.6

-294.6

26.6

233.3

-105.2

-229.7

44.2

233.3

-229.7

44.2

350.0

-64.9

-350.0

45.2

350.0

-64.9

-350.0

45.2

298.8

-112.2

-296.1

33.91

F0.0

-490.2

314028

BIL-POOL

404.1

364025

VIN-POOL

414.5

-130.1

-76.2

131.2

-118.3

-130.1

-76.2

131.2

-118.3

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

402.9

314022

MARWA

400.0

242.4

-34.7-241.8

8.7

10.9

-13.6

-10.9

-20.6

10.9

-13.6

-10.9

-20.6

10.9

-13.6

-10.9

-20.6

-263.6

10.2

265.9

-79.9

-347.8

33.2

351.0

-84.6

-347.8351.0

-84.6

1444.9

-109.3R

2444.9

-109.3R 33.2

297.4

-105.2

-133.6

364022

VINDH-IV,V

413.3

-651.5

62.1

654.7

-3.5

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

400.0

2

SIPATBYP

318007

SIPAT7

766.9

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.2

312002

RAIPUR2

218.0

-172.9

-37.1

1

1

-172.9

-37.1

1

1

-172.9

-37.1

1

1

-186.4

4.311

183.3

-29.2R

2183.3

-29.2R

220.0

1

312003

KORBW2

1


KORBA(W) to Essar By passing Korba (N)

314001

KNTPC4

400.6

2314.4

-650.0

314002

RAIPUR

314003

KORBW4

314004

BHI4

403.9

314005

BHATP4

399.0

314008

SIPAT4

403.3

314010

PATH4

403.2

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

409.1

364027

MAHAN

401.7

118.4

-82.6

-117.9

-29.9

118.4

-82.6

-117.9

-29.9

272.0

-83.9

-269.3

50.0

279.1

-83.2

-276.3

53.0

392.6

-34.5

-389.1

5.4

424.5

-105.1

-423.3

92.3

-50.3

-27.1

50.4

-41.1

379.8

-75.5

-373.8

92.6

379.8

-75.5

-373.8

92.6

20.0

115.3

252.2

-90.1

-249.5

-3.8

3182.8

-46.6R

4-46.7R

5444.9

-113.3R

-47.1

41.2

47.2

-46.8

1-75.0L

2243.7

-75.0L

1131.8

-19.1R

2131.8

-19.1R

3131.8

-19.1R

4131.8

-19.1R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-664.7

314049

RAIPUR SPLT

403.9

400.2

401.5

243.8

-64.8-9.7

243.8

-64.8

-242.2

-9.7

226.1

-59.0

-224.7

36.6

-218.5

47.811

-218.5

47.811

73.4

0.3

-73.0

2.6

73.4

0.3

-73.0

2.6

-50.0

-0.3

50.0

-6.8

10.0

74.0

1.8

-166.9

-8.8

10.0

186.4

-242.2

167.0

403.4

2

SIPATBYP

402.3

374007

BHADR4

417.5

314015

RAIPUR-FSC1

407.0

314025

RAIPUR-FSC2

407.0

-109.2

-304.3

25.8

241.1

-102.8

-237.4

43.8

241.1

-237.4

43.8

324.5

-58.5

-324.5

41.7

324.5

-58.5

-324.5

41.7

315.0

-107.4

-312.0

33.41

F0.0

-490.4

314028

BIL-POOL

404.2

364025

VIN-POOL

414.7

-118.1

-78.0

119.0

-118.6

-118.1

-78.0

119.0

-118.6

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.4

314022

MARWA

400.0

360.8

-81.4

-357.3

40.2

178.5

-30.7-178.1

1.3

-66.9

-0.9

67.0

-33.0

-66.9

-0.9

67.0

-33.0

-66.9

-0.9

67.0

-33.0

-260.3

15.3

262.5

-85.7

-313.0

32.1

315.5

-89.9

-313.0315.5

-89.9

1444.9

-121.6R

2444.9

-121.6R 32.1

307.2

-102.8

-167.0

-1.8

168.2

-61.5 364022

VINDH-IV,V

413.4

-642.2

58.9

645.3

-1.3

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

400.0

1

KORBABYP

318007

SIPAT7

767.1

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.3

312002

RAIPUR2

218.4

-172.9

-36.5

1

1

-172.9

-36.5

1

1

-172.9

-36.5

1

1

-186.5

4.311

-29.8R

2183.3

-29.8R

220.0

1

312003

KORBW2

183.3

1


Korba W to Essar

314001

KNTPC4

0.0, 0.0

40114.0, -87.2

13543.5

-628.1

314002

RAIPUR

314003

KORBW4

314004

BHI4

314005

BHATP4

314008

SIPAT4

0.0, 0.0

38175.2, -87.5

314010

PATH4

314019

BALCO

314030

RAIPUR_POOL

364008

VINDH_W4

0.0, 0.0

40801.5, -87.2

364017

BRSGPR4

364027

MAHAN

2226.7

-85.0

2597.9

-85.5

2226.7

-85.0

2597.9

-85.5

2281.7

-85.2

2341.2

-85.2

2569.3

-85.3

8998.0

-87.1

9291.2

-86.8

2182.2

-85.2

2178.4

-85.2

1884.0

-85.6

1884.0

-85.6

2

2239.6

-85.1

3951.5

-90.0

4-90.0

52325.2

-90.0

1

2

1

2

3

4

1

1

2

1

16333.1

-897.5

314049

RAIPUR SPLT

0.0, 0.0

37761.6, -85.5

2998.9

-84.9-86.2

2998.9

-84.9

3023.3

-86.2

2780.2

-85.1

2802.9

-86.4

8399.2

-89.6

8399.2

-89.6

1666.0

-84.9

1666.0

-84.9

14490.3

-85.7

1

2601.5

-85.2

1

3023.3

0.0, 0.0

25840.5, -85.1

2

SIPATBYP

374007

BHADR4

314015

RAIPUR-FSC1

314025

RAIPUR-FSC2

-87.0

1527.9

-85.0

1527.9

3290.6

-83.1

3290.6

-83.1

1

F

314028

BIL-POOL

364025

VIN-POOL

474046

RANCHI

951.5

314021

RAITA

314022

MARWA

2924.5

-85.2

4765.5

-85.4

1

2

1932.4

-85.0

364022

VINDH-IV,V

7471.8

-86.6

1

2

3

0.0, 0.0

20450.8, -86.9

1

KORBABYP

318007

SIPAT7

1

2

3

4 5

1

312002

RAIPUR2

2

1

312003

KORBW2

1


KORBA(W) to Essar By passing Korba (N)

Korba (W) - Bhilai 400 kV D/C out

314001

KNTPC4

400.0

2314.4

-485.0

314002

RAIPUR

314003

KORBW4

314004

BHI4

404.2

314005

BHATP4

398.4

314008

SIPAT4

402.8

314010

PATH4

403.1

314019

BALCO

400.0

314030

RAIPUR_POOL

408.7

364008

VINDH_W4

400.0

364017

BRSGPR4

408.1

364027

MAHAN

401.6

171.0

-84.2

-169.8

-21.2

171.0

-84.2

-169.8

-21.2

500.2

-31.1

-494.4

26.9

654.4

-111.2

-651.7

122.4

-10.7

-33.8

10.7

-35.8

414.2

-70.2

-407.1

99.4

414.2

-70.2

-407.1

99.4

20.0

115.0

265.3

-91.4

-262.4

0.5

3182.8

-46.5R

4-46.6R

5444.9

-113.1R

-129.8

62.8

130.2

-65.1

1-75.0L

2243.7

-75.0L

1131.8

-18.8R

2131.8

-18.8R

3131.8

-18.8R

4131.8

-18.8R

1

1525.7

-150.0L

2525.7

-150.0L

1

243.7

2650.0

-655.1

314049

RAIPUR SPLT

403.8

400.2

401.5

298.9

-69.53.6

298.9

-69.5

-296.5

3.6

277.2

-63.1

-275.0

48.8

-189.9

41.111

-189.9

41.111

78.3

-1.3

-77.9

4.8

78.3

-1.3

-77.9

4.8

-298.9

55.1

299.1

-60.0

10.0

74.0

-2.7

-192.2

-4.0

10.0

186.4

-296.5

192.3

402.9

2

SIPATBYP

402.3

374007

BHADR4

417.6

314015

RAIPUR-FSC1

407.7

314025

RAIPUR-FSC2

407.7

-110.9

-293.2

24.1

232.1

-103.9

-228.7

42.2

232.1

-228.7

42.2

354.7

-70.6

-354.7

50.4

354.7

-70.6

-354.7

50.4

290.1

-108.9

-287.5

27.21

F0.0

-490.6

314028

BIL-POOL

404.1

364025

VIN-POOL

414.6

-117.4

-78.5

118.3

-118.1

-117.4

-78.5

118.3

-118.1

243.7

-75.0

-243.5

54.9

243.7

-75.0

-243.5

54.9

474046

RANCHI

183.3

314021

RAITA

403.6

314022

MARWA

400.0

374.7

-82.6

-370.9

44.5

195.0

-31.7-194.5

3.2

-84.1

3.6

84.2

-37.2

-84.1

3.6

84.2

-37.2

-84.1

3.6

84.2

-37.2

-271.2

19.4

273.7

-87.8

-320.4

35.2

323.1

-91.7

-320.4323.1

-91.7

1444.9

-123.5R

2444.9

-123.5R 35.2

295.9

-103.9

-192.3

2.7

193.8

-61.8 364022

VINDH-IV,V

413.3

-618.1

56.9

621.0

-1.9

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

284.5

-93.8

-284.2

73.4

1365.7

-125.0L

2406.4

-125.0L

3365.7

-125.0L

400.0

1

KORBABYP

318007

SIPAT7

766.7

1582.3

-165.0L

2582.3

-165.0L

3582.3

-165.0L

4444.1

-125.0L5

444.1

-125.0L

10.0

241.1

312002

RAIPUR2

218.4

-172.7

-36.7

1

1

-172.7

-36.7

1

1

-172.7

-36.7

1

1

-168.1

3.511

-29.0R

2183.3

-29.0R

220.0

1

312003

KORBW2

183.3

1

Annexure - 14.1

1 | P a g e

Minutes of the Meeting among CEA, CTU & DNH held on 01.06.2017 &

02.06.2017 at Silvassa, DNH to discuss and review the 220 kV outlets from Vapi

Il to DNH and intra state transmission system strengthening of DNH

In line with the decision of 41st meeting of Standing Committee on Power System

Planning of Western Region (SCPSPWR) held on 21.12.2016, a meeting was held on

01.06.2017 & 02.06.2017 at Silvassa, DNH amongst CEA, CTU and DNH to discuss

and review the 220 kV outlets from the 400/220kV Vapi Il substation to DNH and intra

state transmission system strengthening of DNH. The list of participants are enclosed

at Annexure-I.

1. In the 41st meeting of SCPSPWR held on 21.12.2016, the following 220kV feeds from

the 2x500MVA, 400/220kV Vapi-II substation and intra state system strengthening at

220 kV in DNH were proposed:

I. 220kV feeds from the 2x500MVA, 400/220kV Vapi-II substation (under ISTS)

a. Vapi-II – New Kharadpada 220kV D/c line (high capacity)

b. Vapi-II – Sayali 220kV D/c line (high capacity)

II. Intra-state Transmission System Strengthening in DNH network at 220 kV level

a. LILO of 2nd ckt. of Vagchipa – Khadoli 220 kV DC line at Sayali Substation b. Kala (PG) – Khadoli 220kV 2nd D/c line (New) c. Kharadpada – New Kharadpada 220kV 2nd D/c line (New) d. Conversion of New Kharadpada 220kV switching station into 2x160MVA,

220/66 kV substation e. Augmentation of Transformation capacity at 220/66kV Vagchipa substation

by 160 MVA (3rd ICT)

2. POWERGRID in their comprehensive system study of transmission network of DNH

for 2021-22 time frame (considering the 400/220 kV,500 MVA ICT at Kala, Vagchipa

and Sayali 2200/ 66 kV substations as additional augmentation in transmission

system) has highlighted the following constraints, without the 220 kV feed to DNH from

proposed 400/220 kV substation at Vapi-II:

a. 3x315MVA, 400/220kV ICTs at Vapi (PG) and 2x315+1x500MVA,

400/220kV ICTs at Kala (PG) substations violate N-1 criteria

b. With the commissioning of Kala – Kudus (MSETCL) 400kV D/c line

overloading on Kala – Khadoli 220kV D/c line is observed. Further, Khadoli

– Sayali 220kV line gets overloaded under outage of Vaghchipa – Sayali

220kV line. Kala (PG) – New Kharadpada 220kV D/c line does not satisfy

n-1 contingency criteria.

2 | P a g e

c. Sayali – Rakholi 66kV D/c and Rakholi – Khadoli 66kV D/c lines are heavily

loaded even under normal conditions and loading becomes worse under

various outage conditions.

d. Kharadpada – Amli as well as Kharadpada – Piparia – Amli 66kV lines are

very heavily loaded both under normal and outage conditions.

e. Vaghchipa 2x160MVA ICTs & Sayali 2x100MVA ICTs do not satisfy n-1

outage criteria.

For mitigation of the above constraints, the following augmentations has been

proposed in the study report:

a. Vapi-II – New Kharadpada 220kV D/c line (high capacity)

b. Vapi-II – Sayali 220kV D/c line (high capacity)

c. LILO of 2nd ckt. of Vagchipa – Khadoli 220 kV DC line at Sayali Substation

d. Kala (PG) – Khadoli 220kV 2nd D/c line. e. Kharadpada – New Kharadpada 220kV 2nd D/c line. f. Conversion of New Kharadpada 220kV switching station into 2x160MVA,

220/66 kV substation g. Augmentation of Transformation capacity at 220/66kV Vagchipa

substationby 160 MVA (3rd ICT) h. Vaghchipa – Dadra 66kV line, which is under construction, may be

constructed with high capacity/HTLS conductor. i. Khadoli (220/66kV) – Khadoli (66/11kV) 66kV D/c line shall have to be

strengthened through another 66kV D/c line or re-conductoring with high capacity/HTLS conductor

3. Site visit of all the existing 220kV level substations of DNH viz. Kharadpada, New

Kharadpada, Sayali and Khadoli substations was carried out on 01.06.2017 to assess

the availability of space at these substations. It was found that space for additional

220kV bays is available at New Kharadpada (1 no.) and Khadoli (2 nos.) existing

substations. There was space for creation of three no. of 220 kV GIS bay at Sayali out

of which two nos. of bays has already been proposed by DNH for installation of 2X100

MVA ICTs at Sayali and one no. GIS bay could be utilised as line bay. DNH has also

proposed establishment of Bhilosa 220 kV switching station by LILO of one ckt. of

Vapi-Kharadpada 220 kV D/C line for giving supply to Bhilosa industries at 220 kV

level.

In view of the space constraint, it was observed that the implementation of following

augmentations proposed in DNH system would not be possible:

• Conversion of New Kharadpada 220kV switching station into 2x160MVA,

220/66 kV substation

• Vapi-II – Sayali 220kV D/c line (high capacity)

• Vapi-II – New Kharadpada 220kV D/c line (high capacity)

• Kharadpada – New Kharadpada 220kV 2nd D/c line

3 | P a g e

4. Joint studies were carried out on 02.06.2017, wherein several alternatives of 220kV

feed to DNH from the proposed 400/220 kV Vapi-II were studied. The augmentations

to overcome the constraints listed under item 2 considering the space constraints at

existing 220 kV substations were also studied (Study results enclosed at Annexure-

II).

5. After detailed deliberations and power flow studies, the following transmission system

was agreed:

I. 220 kV connectivity from 400/220 kV, 2X500 MVA Vapi – II substation to

DNH ( Transmission System under ISTS )

a. Vapi-II – Sayali D/C 220kV line (From Vapi-II upto LILO point of one

circuit of Vapi(PG) –Khadoli 220kV D/C line at Sayali substation with

ampacity equivalent to twin zebra conductor).

b. Interconnection with LILO section (of LILO of one circuit of Vapi(PG) –

Khadoli 220kV D/C line at Sayali substation) so as to form Vapi-II –

Sayali 220 kV D/C line and Vapi- Khadoli 220 kV D/C line. The LILO

section is with zebra conductor.

II. Intra State system strengthening in DNH transmission network

220 kV system

a. Kala – Khadoli 220 kV (2nd) D/C line.

b. Establishment of 220 kV switching station at Bhilosa (GIS) with provision

of 8 nos. of 220 kV bays (4 nos. equipped line bays and 4 nos. future

bays). (Out of the 4 equipped line bays, 2 nos. line bays are for LILO of

one ckt. of Vapi- Kharadpada 220 kV D/C line at Bhilosa and 2 nos. line

bays are for Bhilosa industries)

c. LILO of one ckt. of Vapi- Kharadpada 220 kV D/C line at Bhilosa.

d. Establishment of Vagchipa 220/66, 2X160 MVA substation by LILO of

both ckts of Vapi-Khadoli 220 kV D/C line. (already under

implementation).

e. Conversion of Sayali 220 kV switching station to 2X100 MVA, 220/66 kV

substation.

f. Conductor replacement of the LILO section (of LILO of one circuit of

Vapi(PG) –Khadoli 220kV D/C line at Sayali substation) with ampacity

equivalent to twin zebra conductor depending on the loading of the lines

in future, if required.

66 kV system

g. Establishment of three 66kV circuits between Vaghchipa & Dadra

h. Establishment of three 66kV circuits between Vaghchipa & Amli

i. 66 kV Vaghchipa – Silli D/C line

4 | P a g e

j. Establishment of Sayali new 66/11 kV substation with LILO of Sayali

220/66 kV- Rakholi 66 kV D/Cline at Sayali new and LILO of Masat –

Khadoli 66kV S/C line at Sayali New 66/11kV S/s.

k. Amli- Silvassa Town 66 kV D/C line.

l. Shifting of about 20MVA bulk load from Amli to Silli

5 | P a g e

Annexure I

List of the participants of the meeting held on 1st to 2nd June 2017 at Silvasa,

Dadra and Nagar Haveli to review transmission system of DNH.

S.No Name & Designation Organisation E-mail & contact number

1 Awdhesh Kumar Yadav, Director

CEA

2 Vikas Sachan, Asst. Director

CEA

3 Ramchandra DGM

POWERGRID [email protected] Mob. 9910378128

4 Pratyush Singh Sr. Engineer

POWERGRID [email protected] Mob. 8826094863

5 H. M. Patel Executive Engineer

DNH [email protected]

6 H.C. Surma Asst. Engineer

DNH [email protected]

mailto:[email protected]






37.8

2.5

45.8

8.0

17.0

3.4TR

34.0

6.8

DNH Power Scenario Zone 33 Summary: Net Interchange : -1297.94 MW, -227.11 MVAR Zone loads : 1297.54 MW, 286.04 MVAR Zone generation : 10.37 MW, 6.50 MVAR Zone losses : 10.77 MW, 196.34 MVAR

63.4

46.0

7.0

46.2

7.4

46.0

7.0

46.2

7.4

5.8

14.6

3.6

14.53.8

5.8

14.8

14.9

332011BHILOSA220

212.7

30.2

30.25.1

87.8 15.8

88.114.3

157.6

10.7

DNH POWER FLOW STUDY

5.8

2021-22

336008SAYALINEW66

332001KARARPD2

212.5

332004NEW KHARDPDA

212.6

4.1

87.2

4.1

77.1

14.4

87.2

213.4

48.2

11.3 48.2

11.3

213.7

73.5

2.6

332006ALOK IND

215.2

120.7

17.21

120.7

17.2

214.1

116.3

11.2

116.3

208.2

19.3

1 1

208.2

19.3

1 1

332005RIL

212.6

52.8

52.8

7.5

CS105.5

15.0

7.5

140.6

12.3

140.

6 12.3

215.4

208.2

27.3

1 1

208.2

27.3

1 1

208.2

27.3

1 1

330.5

30.6

1 1 330.5

332002KHADOLI

352010VAPI_PG2

332007VAGHCHIPA

332008SAYALI

332003KALA

215.7

73.5

2.6

73.4

1.5

144

.6

23.5

144.7

7.5

23.5

144.

7

7.5

116.3

11.2

116.4

11.1

11.2

116.4

11.1

352170VAPI II

214.0

116.3

11.2

59.7

144.6

336001KARARPD6

63.5

5.51186.7

8.711

54.2

5.511

86.7

8.711

CS89.3

12.8

60.9

20.1

336004AMLI

63.6

336009ATHAL

63.3

336015RAKHOLI1

62.8

336019DADRA1

63.3

336021PIPARIA

63.4

336022WAGHDARA

63.1 8.0

3.3

36.1

4.5

20.0

4.2

10.2

2.4

19.6

19.6

13.5

8.4

TR31.4

12.9

128.4

4.1

CS122.0

17.4TR

13.2

9.7

CS26.0

3.7

TR98.7

20.1

123.7

6.0

125.5

5.1

63.47.5

9.3

19.4

2.7

TR64.8

21.3

336002KHADOLI6

63.5

336005SILLI

63.1

13.7

2.0

45.0

4.6

45.0

4.6

CS25.5

TR8.7

43.10.9

336007VAGHCHIPA

63.8

27.5

3.8

27.5

3.8

30.9

1.9

30.9

1.9

336024AMLI66CONSUM

63.6

121.5

9.811

11

23.6

6.3CS

23.6

6.3

106.0

16.7

1

1

106.0

16.711

336012KHANVEL

63.2

336013KALA

63.2

336014KHADOLI3

62.7 336023VELUGAM

63.0

5.9

2.8

5.9

2.8

6.8

2.7

6.8

2.7

39.4

4.6

39.4

4.6

15.1

2.415.1

2.4

111.7

5.6

113.6

5.4

81.2

11.6

TR75.2

38.5

CS25.7

3.7

TR6.5

2.2

TR

336025SAYALI

63.7

11

84.2

5.4

9.8

27.4

37.8

2.5

45.8

8.0

336026SILVASA TOWN

63.6

17.0

3.4

12.1

1.5H

18.3

5.0H

121.5

54.2

106.0

11

7.1

10.0

46.5

2.9

31.7

2.6

31.5

2.9

31.7

2.6

10.0

46.0

1.9

30.6

2.6

1

25.8

2.6

16.7

31.5

2.9

31.7

2.6

31.5

336010MASAT1

1.9

1.9

CS

1.8

26.1

39.4

4.6

39.4

4.6

30.9

11 14.9

84.2

CS

106.0

83.4

393.8

1

395.0

396.3

75.8

53.6

75.8

53.6

449.2

13.9

449.2

13.9

354010VAPI4

334003KALA DNH

374052KUDUS-MSETCL

1

Annexure - 15.1

of 4

Minutes of Meeting held on 12.04.2017 to discuss the issues related to Low

Voltage problem in Solapur area

The list of participants is enclosed as Annexure–I.

1.0 CE, PSP&A–I, CEA welcomed the participants for the meeting. He stated that this meeting

has been called to discuss the interim arrangement proposed by MSETCL. The proposal

involves charging a part of the existing 400 kV Solapur (PG)–Karad S/C line at 220 kV

level using one circuit of under construction Solapur (PG)-Bale 220 kV D/C line as an

interim arrangement. MSETCL has intimated that the proposal was to resolve low voltage

problems in Solapur District during agriculture peak load. This interim arrangement has

been discussed in 493rd OCC meeting held on 10th March, 2017 at Vindhyachal, wherein,

it was deliberated that any reconfiguration of the network would require approval of CEA

/ CTU and the Reliance Power Transmission Ltd.

2.0 Director, PSP&A–I, CEA informed that MSETCL vide its letter no.

MSETCL/CO/STU/2818 dated 18.03.2017 sent the proposal (copy enclosed as Annexure-

II). He said that Parli–Karad 400 kV S/C line was LILO at 400 kV Lamboti S/s (i.e. Solapur

- MSETCL). Subsequently, under WRTS–II, LILO of 400 kV Lamboti-Karad S/C line at

Solapur (PG) was implemented by M/s Reliance Power Transmission Limited (RPTL).

3.0 MSETCL representative intimated that 220 kV substations at Pandharpur, Malinagar, Jeur,

Tembhurni and Karkambh of Solapur district are fed from 400/220 kV Lamboti S/s through

radially connected 220 kV Lamboti – Karkambh – Jeur (189 km) line and 220 kV Lamboti

– Pandarpur – Malinagar – Tembhurni – Jeur (166 km) line. During the peak agriculture

load (6 AM to 12 Noon), these lines are loaded beyond SIL limit thus the low voltage

observed at all above substations and the voltage at Lamboti S/s at 400 kV level is also low

i.e. ranging from 370 kV to 400 kV. He informed that to address the low voltage problem,

220 kV Solapur (PG) – Bale D/C was planned and the same is under implementation

(expected to be commissioned by September 2017). Further a 400/220 kV 2x500 MVA S/s

at Tembhurni / Karjat is also planned in 2021–22 time frame to mitigate the low voltage

problem.

4.0 MSETCL representative added that existing Solapur (PG)–Karad 400 kV S/C line is

crossing 220 kV Solapur (PG)–Bale D/C line, Karkambh–Jeur S/C line and Tembhurni –

Jeur S/C line. The present proposal is to charge a section of Solapur (PG) – Karad 400 kV

S/C line at 220 kV by interconnecting it with part of 220 kV Solapur (PG)-Bale (one circuit)

line and Tembhurni–Jeur 220 kV S/C line so as to form Solapur (PG)–Jeur 220 kV S/C

line.

5.0 CE, PSP&A–I, CEA stated that from the proposal submitted by MSETCL, it is observed

that some portion of 400 kV Solapur-Karad S/c line at Solapur (PG) and Karad end would

remain unutilized. The proposal also involves tapping (formation T) at 220 kV level at

some points. He added that section 44 (6) of CEA Regulations, 2010 (Measures relating

of 4

Safety and Electric Supply), states, “There shall not be tapping of another transmission

line from main line for 66 kV and above class of lines”.

6.0 MSETCL representative agreed to modify the scheme so as to remove all tappings at 220

kV voltage level. In the revised schematic Solapur (PG) would be connected to Jeur and

Jeur - Karkambh line would be opened at suitable location and Jeur would be connected to

Tembhurni at that location. The idle section of Jeur - Karkambh line from Karkambh end

may be charged for anti-theft purpose. Similarly, idle sections of Solapur (PG) - Karad line

from Solapur (PG) and from Karad ends may also be charged to avoid theft. The schematic

of the above proposal is given below:

Block diagram – interconnection of various S/s of Solapur area

7.0 Director, PSP&A–I stated that the study results submitted by MSETCL indicate 257 MW

of power flowing through 220 kV Solapur (PG) – Jeur line. This means that 220 section of

Solapur (PG) - Bale line is over loaded. He suggested that MSETCL must explore the

possibility of charging idle section of Solapur (PG) - Karad line from Karad end at 220 kV

and connect it to Tembhurni or Karkhamb S/s so as to provide additional feed to area

around Jeur.

8.0 MSECTCL representative stated that Solapur (PG) - Bale 220 kV D/C line has been

designed for maximum operating temperature of 85oC. As per CEA planning criterion, the

220 kV S/c line with ACSR Zebra conductor can carry 769A (264 MW at 0.9 power factor)

with ambient temperature of 40oC. The loading of 257 MW is for peak agriculture load

during morning hours, when the ambient temperature is also low. The charging of idle

of 4

section of Solapur – Karad line from Karad end at 220 kV would require one no. 220 kV

bay at Karad and shifting of line from 400 kV portion of the switchyard to 220 kV

switchyard. MSETCL agreed to explore the possibility.

9.0 CTU representative stated that 400 kV Lamboti is a weak source and studies indicate a

voltage difference of 10 kV between Solapur (PG) and Lamboti at 400 kV. He suggested

that a 400 kV D/C interconnection may be planned between Solapur (PG) and Lamboti.

MSETCL was requested to examine the proposal of bypassing the LILO of Karad – Parli

at both Solapur (PG) and Lamboti S/s and interconnect LILO portions to form Solapur

(PG) – Lamboti 400 D/C line. MSETCL agreed to explore this option.

10.0 NLDC representative stated that M/s MSETCL should implement Under Voltage Load

Shedding (UVLS) relays at all its S/s at the earliest, in order to improve grid safety and

security. It was also suggested that in order to improve the voltage profile, adequate

reactive compensation at 33 kV and below voltage level may be implemented by MSETCL

at the earliest. MSETCL agreed for the same.

11.0 Representative of M/s Reliance Power Transmission Limited expressed concern about the

recovery of tariff and availability of the LILO portion i.e. LILO of Lamboti - Karad 400

kV S/C line at Solapur (PG) implemented by M/s RPTL after implementation of this

interim arrangement. He informed that the transmission asset of RPTL has been mortgaged

and consent from lenders would be required. He added that change of ownership of the

transmission asset is under process and prior consent of new owner would be required.

12.0 CE (PSPA-I), CEA stated that there will be no impact on transmission tariff and availability

after the implementation of the interim arrangement. This being an ISTS asset, the manner

of usage of this asset would be decided by CEA, CTU and the constituents of Western

Region. Therefore, no permission from lenders / prospective owner is required. CTU

representative stated that their 1 no. of 400 kV bay at Solapur (PG) should also be deemed

100% available, as per regulatory norms.

13.0 After further deliberations, following was agreed.

i) The proposal of MSETCL as shown in the block diagram above was agreed as an

interim arrangement to mitigate the low voltage problem faced in Solapur district.

ii) The interim arrangement shall be disconnected by Dec, 2017 or after the completion

of Solapur (PG) – Bale 220 kV D/C line, whichever is earlier.

iii) The above proposal is agreed in principle and the proposal would be put up in

forthcoming meeting of the Standing Committee on Power System Planning of

Western Region for ratification.

iv) All the expenditure for implementation of the interim arrangement and its

restoration shall be borne by M/s MSETCL.

of 4

v) MSETCL shall expedite the implementation of 400/220 kV Tembhurni / Karjat

sub-station along with upstream and downstream network.

vi) MSETCL shall implement Under Voltage Load Shedding (UVLS) relays at all its

S/s at the earliest and provide adequate reactive compensation at 33 kV and below

voltage level in Solapur district at the earliest.

vii) MSETCL shall explore interconnection between Solapur (PG) – Lamboti

(MSETCL) by using LILO portions of Parli - Karad 400 kV line at Solapur (PG)

and Lamboti.

viii) The idle section of Solapur (PG) – Karad 400kV S/c line along with the line bays

at Solapur (PG) end shall be deemed 100% available subjected to regulatory norms.

The meeting ended with thanks to the chair.

*******

Annexure - I

List of participants of the meeting held on 12.04.2017 at CEA, New Delhi to discuss the issues

related to low voltage problem in the areas of Solapur District, Maharashtra.

S. No. Name Designation

&

Organization

Contact No. e - mail ID

1 Shri. Ravindra Gupta Chief Engineer, CEA 9968286184 [email protected]

2 Shri. Awdhesh Kumar Yadav Director, CEA 9868664087 [email protected]

3 Shri. Shiva Suman Dy. Director, CEA 9013929260 [email protected]

4 Shri. Vikas Sachan Assistant Director, CEA 7838263649 [email protected]

5 Shri. Nitin Deswal Assistant Director, CEA 9717818349 [email protected]

6 Shri. Ashok Pal GM (CTU-Plg) 9910378105 [email protected]

7 Shri. Pratyush Singh Engineer (CTU-Plg) 8826094863 [email protected]

8 Shri. N. Nallarasan DGM (POSOCO) 8527077022 [email protected]

9 Shri. R. H. Satpute SE (MSETCL) 9930128535 [email protected]

10 Shri. Vinay G. Khedekar Add. EE (MSETCL) 9619850189 [email protected]

11 Shri. Naveen Nagpal DGM (RPTL) 9350718386 [email protected]












Annexure-II

Annexure - 21.1

Meeting Notice & Agenda Note - Central Electricity Authority

Documents

Transcript of Meeting Notice & Agenda Note - Central Electricity Authority